Totally reflecting prisms are preferred to mirrors in periscopes because

I. mirror givegive multiple images
II. silvering on mirrors is easy damaged
III. mirrors reflect less light than totally reflecting prisms

Similar Questions

The diagram above represents the field pattern obtained by bringing the poles of two magnets togethe...

The following statements are advantages of a solid dielectric material between the plates of a capac...

An object of mass m moves with a uniform speed v round a circular path of radius r. If its angular s...

X-rays and infrared rays are both electromagnetic. Which common property do the waves have? Both wav...

Which of the following statements about matter is not correct? ...

The diagram illustrates the velocity-time graph of a body. Calculate the distance covered by the bod...

A capacitor of capacitance 25μF is connected to an a.c. power source of frequency 200 Hz. Calcula...

If the pressure on 100cm3 of an ideal gas is doubled while its kelvin temperature is halved, then th...

An electric heater rated 220v, 1000 w is immersed into a bucket full of water, calculate the mass of...

A lead bullet of mass 0.05kg is fired with a velocity of 200ms\(^{-1}\) into a block of mass 0.95kg....