A concave lens forms an erect image of half the size of the object which is placed at a distance of 20 cm in front of the lens. Find the position of the image and also find the focal length of the lens
Monochromatic light of wavelength 590 nm is incident from air on water. If the refractive index of water is 3/2 then its wavelength is?
what is the difference between FeSO4 and FeCl2
Ashmit28j
Asked:
December 2022
(i)Conversion of energy when water converts to ice (ii) Conversion of energy when ice melts to water