An object placed at the bottom of a well full of clear water appears closer to the surface due to?
An object is placed 5 cm from the pole of a concave mirror. if the focal length of the mirror is 10 cm. what is the image distance?
If the refractive index of crown glass is 1.51, its critical angle is?
An object is embedded in a block of ice, 10 cm below the plane surface. if the refractive index of the ice is 1.50, the apparent depth below the surface is?
Dispersion occurs when white light passes through a glass prism because of the?
