Sᴄɪᴇηᴄᴇ Aηᴅ Cᴏᴍᴘᴜᴛᴇʀ Nᴏᴛᴇs™ 🎲

When an apple is cut, it gets discoloured due to the presence of the enzyme: 1. carbonic anhydrase 2. pyruvate kinase 3. polyphenol oxidase 4. nitrate reductase

The most electronegative element among the following is - (1) sodium (2) bromine (3) fluorine (4) oxygen

Sewing machine was invented by – (1) Alfred P. Southwick (2) Isaac Singer (3) Murasaki Shikibu (4) Hanaoka Seishu

What happens to its potential energy when an object is taken to high altitude? (1) Its potential energy increases (2) Its potential energy decreases (3) Its potential energy remain same (4) None of the above

Kilowatt-hour (KWH) is the unit of - (1) power (2) resistance (3) resistivity (4) energy

The conversion of hard water into soft water by boiling or adding calcium hydroxide is called - (1) Baker's process (2) Temp's process (3) Clarke's process (4) Lake's process

Ohm's law is valid in case of – (1) semiconductor (2) conductor (3) superconductor (4) insulator

The mass of water vapour per unit volume of air is known as - (1) relative humidity (2) specific humidity (3) absolute humidity (4) variable humidity

Coffee belong which of the following family ?

Am i continuing daily poll quizes ??

Name the physical quantitiy that changes or tends to change the state of rest or of uniform motion of a body in a straight line? 1. Momentum 2. Mass 3. Force 4. Inertia

A _________ and _________ image is formed by an object placed in front of a convex mirror at a point between infinity and the pole of the mirror. 1. Real and enlarged 2. Real and diminished 3. Virtual and enlarged 4. Virtual and diminished

The ______ is connected in parallel in an electric circuit. 1. Voltmeter 2. Fuse 3. Galvanometer 4. Ammeter

Due to atmospheric refraction, sunrise is advanced and sunset is delayed by about 1. 1 minute 2. 2 minutes 3. 4 minutes 4. 3 minutes

A lemon kept in water in a glass tumbler looks bigger than its actual size, because of 1. Reflection of light 2. Diffraction of light 3. Internal reflection of light 4. Refraction of light

When the momentum of the body is doubled, the Kinetic energy of the body increases 1. Two times 2. Four times 3. Unchanged 4. Half

If you look into a mirror and find that your reflexion is smaller than you, then it is a type of

Which of the following electro magnetic radiations has the maximum energy?