THE UNKNOWN SOLUTION TEAM

(30) What is the leat possible error in using a rule graduated in centimeters? – 0.5 cm More topics to be expected in JAMB Physics (1) The object moves with uniform speed round a circle. Its acceleration has – constant magnitude and varying direction (2) The motion of a moving skin of a talking drum can rightly be described as – oscillatory (3) Isotopes are nuclei which has? – the same atomic number but different mass number (4) The net charge on the atom is zero because – the neutrons form shield around the charged protons (5) Gases conduct electricity under – low pressure and high voltage (6) For resonance to occur in a.c circuit containing a resistor, capacitor and inductor – when the frequency source is such that the reactance of the capacitor is equal to the inductive reactance (7) In a purely inductive circuit, the current – lags behind the voltage in phase by 90 degree (8) The principle of operation of an induction coil is based on – Faraday’s law (9) A dynamo primarily converts – mechanical energy into electrical energy (10) To convert a milliameter to an ammeter – a low resistance in series is required (11) In order to convert a galvanometer into an ammeter – a low resistance shunt is connected in parallel (12) If two parallel conductors carry currents flowing in the same direction, the conductors will – attract each other (13) A calibrated potentiometer is used to measure the emf of a cell because the – potentiometer takes no current from the cell (14) The resistance of an open series circuit is – infinite (15) When white light is dispersed by a spectrometer, the component having the shortest wavelength is – violet

Unknown solution team Key points to know Expected topics and Questions in JAMB Physics Questions and answers on electric field Answers to linear expansivity questions Solutions to questions on Direct current (D.C) Questions and answers on work energy and power Questions and answers on Nuclear physics Solutions to Gas law questions Answers to questions on current of electricity Questions and answers on Alternating current Magnetic field and E,M induction answers Questions and answers of Machine and light waves Answers to questions on heat energy Capacitance of a capacitor solution Gravitational field Stationary waves and Diffraction Wave motion Questions and answers on moment of a force Kinematics and deformation of solid Measurement Dynamics Friction Dimension Analysis Fundamental and Derived quantities Scalar and Vector quantities Questions to be expected in JAMB Physics. (1) Example of vector quantity – velocity, acceleration, moment, displacement, force, electric field intensity, magnetic flux (2) Examples of scalar quantity – work, time, mass, distance, energy, pressure, speed, temperature (3) The resultant of two forces acting on an object is maximum if the angle between them is – 0o (4) The terrestrial telescope has one extra lens more than the astronomical telescope. The extra lens is for -erection of the image (5) What is the angle of dip at the magnetic equator? – 0o (6) At resonance, the phase angle in an a.c. circuit is – 0o (7) The process of energy production in the sun is – Nuclear fusion (8) A transistor functions mainly as a – switch and amplifier 07032599536 (9) Energy losses through eddy currents are reduced by using – insulated soft iron wires (10) The effect of a particle in a fluid attaining its terminal velocity is that the – weight is equal to the retarding force (11) Water is a poor thermometric liquid because it – wet glass 07032599536 (12) To produce an enlarged and erect image with a concave mirror, the object must be positioned – between the principal focus and the pole (13) The phenomenon that makes sound persist when its source has been removed is known as – reverberation (14) The colours seen in soap bubbles are due to – dispersion (15) The electromagnetic wave that can produce a heating effect on the environment is – infra-red (16) Pure silicon can be converted to a p-type material by adding a controlled amount of – trivalent atoms (17) The particle that is responsible for nuclear fission in a nuclear reactor is – neutron (18) The carbon-granule microphone works on the principle of change in – resistance (19) The phenomenon whereby the water droplets in the atmosphere combine with dust particles in the air to reduce visibility is – fog (20) In a semi-conductor junction diode, as the depletion or barrier layer is forward biased, the layer – narrows (21) As the pressure of a fluid increases, its viscosity – increases (22) To change a d.c dynamo to a.c dynamo – commutator should be replaced with slip rings (23) Transverse waves can be distinguished from longitudinal waves using the characteristic of – polarization (24) The North pole of a magnet can never be separated from the South pole because of a property known as – magnetic dipole (25) The charge carriers in gases are – electrons and ions (26) The ray which causes gas molecules to glow is known as – cathode ray (27) Lenz’s law is a law of the conservation of – Energy (28) The phenomenon of light bending round an obstacle is – diffraction (29) The instrument that measures both a.c. and d.c. is – moving iron ammeter

Read the above very well because jamb sets questions from it wella

English  word stress rules about word stress in english -⭕- onl vowel sound are stressed (a,e,i,o,u). -⭕-A general  rules is that for two syllable  words ,noun and adjective  have the same syllable ,but verb have the stress on the second syllable . For example  :𝐭𝐚ble (noun),𝐬𝐩𝐞𝐜ial(adjective),de𝐦𝐚𝐧𝐝(verb). ⭕Word ending in 'ic', 'tion' or 'sion' always place their stress on the penultimate(second to last )syllable.(e.g.super𝐬𝐨𝐧𝐢𝐜,At𝐥𝐚𝐧tic,dedi𝐜𝐚tion,at𝐭𝐞𝐧tion,transfor𝐦𝐚tion,compre𝐡𝐞𝐧sion). ⭕words ending in 'cy', 'ty', 'gy' and 'al' always  place their stress on third fom last  syllable.(e.g acc𝐨𝐮𝐧tancy,sinc𝐞𝐫ity,chro𝐧𝐨𝐥ogy,inspi𝐫𝐚𝐭ional,hypo𝐭𝐡𝐞tical,). ⭕word ending  in 'sm' with 3 or fewer syllables have their  stress on the first syllable (e.g 𝐩𝐫𝐢sm, 𝐬𝐜𝐡i𝐢sm,𝐚𝐮𝐭ism,𝐛𝐨𝐭ulism,𝐬𝐚𝐫casm)unless if tgey are extension of o stem word .this is often the case with words ending 'ism'. ⭕words ending in 'ism'tend to follow the stress rules for the stem word with the 'ism' tagged onto the end (e.g 𝐜𝐚𝐧nibal=𝐜𝐚𝐧nibalism,ex𝐩𝐫𝐞ssion=ex𝐩𝐫𝐞ssionism,𝐟𝐞𝐦inist=𝐟𝐞𝐦inism,oppor𝐭𝐮𝐧itst=oppor𝐭𝐮𝐧ism) ⭕Englich word ending in 'ous' with 4 syllables usually  have  their stress on the second syllable (e.g gre𝐠𝐫𝐚ious,a𝐧𝐨𝐧ymous,su𝐩𝐞𝐫fulous,an𝐝𝐫𝐨gynous,car𝐧𝐢𝐯orous,tem𝐩𝐞𝐬tous,lux𝐮𝐫ious,hil𝐚𝐫ious,con𝐭𝐢𝐧uous,cons𝐩𝐢𝐜uous).there some exception using different  stressed syllables,such as sacrilegious ,which stresses the third syllables. ‌unknown S‌ol‌u‌t‌i‌on‌ ‌T‌e‌a‌m 07032599536

English Topics ; stress    When thinking about syllabus and stress in English , usually we find that one syllable of a word is stressed more than the others.there is always one or more stressed syllabus within a word and this special stress placement helps words and sentences develop their own rhythm. Syllables and stress pattern in English help to create the sounds ,pronunciation and rhythm that we hear all  around us. Using the correct stressed syllables within a word is an important part of speech and understanding. Pronouncing word with the right word stress will make your language sound more natural to native speakers.Here are some words from the previous list with the stressed syllables in bold;     Two syllable word stressing pattern ; 𝐐𝐮𝐢et,𝐏𝐚𝐫ty,𝐒𝐩𝐞cial,to𝐝𝐚𝐲,𝐨𝐫ange,𝐩𝐚𝐫𝐭ner,𝐭𝐚ble, three syllabus word stress pattern: Fan𝐭𝐚𝐬tic,ex𝐩𝐞𝐧sive,ag𝐠𝐫𝐞ssion,𝐰𝐨𝐧derful etc The unknown solution team 07032599536

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❇️❇️❇️❇️❇️❇️❇️❇️❇️❇️❇️ EMPHATIC STRESS is used in a sentence to show the meaning, that the speaker wants to convey. It is usually identified by the capitalization of words specifically emphasized. Emphatic stress is put in the form of questions through a sentence/ statement. Example; Helen is my FIRST daughter (a) Is Helen my second daughter? (b) Is Ngozi my first daughter? (c) Is Peace my first nephew? (d) Is Chika my first cousin? Note: The option that directly stands in contrast with the stressed word(s) and contains not the capitalized word is the correct answer. RHYME is defined as a word that has the same sound. This implies that rhyme occurs when two words have the same sound at the same position. We identify rhyme by the similarity of sounds (not letters). Examples: Words.        Rhyme Ro-s-e          cea-s-e B-oy-             t-oi-let T-a-sk           c-a-t   S-n-uff          s-n-ow Plan-t           sigh-t Epita-ph       sta-ff Feti-sh         sa-ch-et Ma-k-e         drasti-c *SOUND CLASSIFICATION* This is the aspect of English studies that deals with phonetics, that is, how words are pronounced. In English, sounds are derived from the 26 (twenty-six) alphabets of A, B, C, D...Z otherwise known as orthographic symbols. Types of English Sounds There are two basic sounds in English and they are vowels and consonants VOWELS: English is well known for having a large number of vowels as many as twenty altogether. Vowels are speech sounds made with a clear channel when the mouth is slightly open thus allowing air to pass freely from the lungs through the oral cavity. This implies that vowels are sounds produced without any obstruction, articulation or restriction of the air stream by any of the speech organs. The quality of vowel produced depends on the shape of the oral cavity as modified by the position of the tongue and the lips. Since vowels do not have the same place of articulation as consonants, they are defined as voiced sounds produced with an open approximation of the articulators such as tongue, lips, jaws, etc. There are five fundamental vowels and they are a, e, i, o, u.   Unknown solution team 07032599536

❇️❇️❇️❇️❇️❇️❇️❇️❇️❇️❇️ EMPHATIC STRESS is used in a sentence to show the meaning, that the speaker wants to convey. It is usually identified by the capitalization of words specifically emphasized. Emphatic stress is put in the form of questions through a sentence/ statement. Example; Helen is my FIRST daughter (a) Is Helen my second daughter? (b) Is Ngozi my first daughter? (c) Is Peace my first nephew? (d) Is Chika my first cousin? Note: The option that directly stands in contrast with the stressed word(s) and contains not the capitalized word is the correct answer. RHYME is defined as a word that has the same sound. This implies that rhyme occurs when two words have the same sound at the same position. We identify rhyme by the similarity of sounds (not letters). Examples: Words.        Rhyme Ro-s-e          cea-s-e B-oy-             t-oi-let T-a-sk           c-a-t   S-n-uff          s-n-ow Plan-t           sigh-t Epita-ph       sta-ff Feti-sh         sa-ch-et Ma-k-e         drasti-c *SOUND CLASSIFICATION* This is the aspect of English studies that deals with phonetics, that is, how words are pronounced. In English, sounds are derived from the 26 (twenty-six) alphabets of A, B, C, D...Z otherwise known as orthographic symbols. Types of English Sounds There are two basic sounds in English and they are vowels and consonants VOWELS: English is well known for having a large number of vowels as many as twenty altogether. Vowels are speech sounds made with a clear channel when the mouth is slightly open thus allowing air to pass freely from the lungs through the oral cavity. This implies that vowels are sounds produced without any obstruction, articulation or restriction of the air stream by any of the speech organs. The quality of vowel produced depends on the shape of the oral cavity as modified by the position of the tongue and the lips. Since vowels do not have the same place of articulation as consonants, they are defined as voiced sounds produced with an open approximation of the articulators such as tongue, lips, jaws, etc. There are five fundamental vowels and they are a, e, i, o, u.   Unknown solution team 07032599536

♣️♣️♣️♣️♣️♣️♣️♣️♣️♣️♣️            English major concentration                 👇👇👇👇 *MEANING OF STRESS* Stress is defined as the muscular effort at uttering a word, which is perceived by the speaker himself at great intensity while the listener perceives it as loudness. It is a means by which a certain syllable in an utterance is given prominence over others. A syllable is the smallest unit into which words can be divided. A syllable is made up of a vowel sound and usually a consonant or more. A word may have a sound segment (syllable) or more. Syllabication is the division of a word into syllables in terms of either phonological (speech sound) or orthographic (letters). We have three major syllables. They include; Monosyllabic, Disyllabic, and Polysyllabic. Monosyllabic word: A word is said to be monosyllabic when it contains only one sound segment Example; Cat, the pen, etc. Disyllabic word: This is a word with two sound segments or syllables. Example; cont/tain, cor/rect, dun/geon, etc. Polysyllabic word: This is a word with three or more sound segments. Example; cir/cum/stance, punc/tua/tion, etc. Note that some syllables may consist of vowels alone. Examples include: a, an, ah, etc. TYPES OF STRESS We have three types of stress in the English language. They are primary, secondary, and unstress syllables. However, primary stress is the most important stress in English and it can be identified by the following features: (i) Loudness of voice (ii) Length of the word (iii) Quality of the vowel. POSITION OF STRESS: The loudness, pitch, length, and quality of the stress sound of words to the ear determine the position of stress. The number of syllables such as, monosyllabic, disyllabic, or polysyllabic words can also determine the position of stress. Some words can function as a noun or a verb depending on the position of the stress. Examples of such words are shown below; As a Noun.      As a Verb 'Escort            Es' cort 'Comfort         Com' fort 'Protest           Pro'test 'Project           Proj'ect 'Transport      Trans'port 'Benefit           Be'nefit 'Contest         Con'test 'e-mail (email)  e'mail The above examples show that words that can function as nouns are stressed on the first syllable while words that can function as verbs are stressed on the second syllable. Three syllabic words can be stressed on either first, second, or third syllables. Examples are shown below; STRESS ON FIRST SYLLABLE Thankfully - THANK-ful-ly Ruminate - RU-min-ate Centralism - CEN-tral-ism Celluloid - CEL-lu-loid Argument - AR-gu-ment STRESS ON SECOND SYLLABLE Advantage - ad-VAN-tage Ignition -  ig-NI-tion Industrial - in-DUS-trial Interpret - in-TER-pret Narration - nar-RA-tion STRESS ON THIRD SYLLABLE Represent - rep-re-SENT Insincere - in-sin-CERE Barricade - bar-ri-CADE Reportage - re-por-TAGE Incomplete - in-com-PLETE Unknown solution team 07032599536

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