If the velocity of light in a medium = 2.25 x 10^8 m/s, find the refractive index of that medium?
pls any one tell me will the focal length of mirror will change when it is placed in water? pls help me
Why are concave mirrors used by dentists and also in torches?
If the image distance is negetive then what will be its magnification?will it be v/u or -v/u
y dispertion takes place in a prism and not in a rectangular glass slab.give reasons......plz ans dis............
If the velocity of light in a medium = 2.25 x 10^8 m/s, find the refractive index of that medium?
pls any one tell me will the focal length of mirror will change when it is placed in water? pls help me
Why are concave mirrors used by dentists and also in torches?
If the image distance is negetive then what will be its magnification?will it be v/u or -v/u
y dispertion takes place in a prism and not in a rectangular glass slab.give reasons......plz ans dis............