Quiz[ Dev Hooda ]

Mass of beta- particle is

Photon is

More photosensitive

In photo electric effect light falls on __ and e eject if it is of sone sufficient energy

__ energy req by an e to pull it out of the metal surface is called work function of metal

Cathode rays originate from

For same potential difference wavelength of e p and alpha partical in increasing order

Efficiency of photoelectric effect(E)is = no of e emitted / no of photons What is 1/E

Energy of a radio wave with wavelength = 1m is __J

The smallest unicellular organism

Best stage to study shape of chromosomes

Stored food in porphyra

Common mode of sexual reproduction in Chlamydomonas

Chlamydomonas show which type of reproduction

Sizuka is standing midway between wall of height H and mirror. She want to see the complete image of wall what is the min length of mirror req

Image formed by plane Mirror 🪞

Radius of curvature of concave mirror is 20cm its focal length is