A perfectly reflecting mirror has an area of `1cm^(2)` Light enery is allowed to fall on it 1 h at the rate of `10 W cm^(2)`. The force that acts on the mirror is

A narrow beam of monochromatic light of wavelength lamda emitted from a source of power P is propogating in the positive x-direction. After being reflected from a perfectly reflecting plane mirror of area vector vecA=A(-hati-hatj) , the beam falls on a metal plate of surface area A[ vecA is along outward normal at mirror]. the force exerted by light beam on the mirror is vecF and Deltavecp is change in momentum of each photon then [cis speed of light in vacuum]

Light of wavelength 221 nm falls on a totally reflecting plane mirror at an angle 30^@ with the mirror. If 10^20 photons are striking the mirror per second , then what will the force exerted on the mirror ?

An object is placed 42 cm, in front of a concave mirror of focal length 21 cm. Light from the concave mirror is reflected onto a small plane mirror 21 cm in front of the concave mirror Where is the final image?

An object is placed 42 cm, in front of a concave mirror of focal length 21 cm. Light from the concave mirror is reflected onto a small plane mirror 21 cm in front of the concave mirror Where is the final image?

A small status has a height of 1cm and is placed in front of a spherical mirror. The image of the statue is inverted and is 0.5cm tall and located to 10cm in front of the mirror. Find the focal length and nature of the mirror.

An object is placed 21 cm in front of a concave mirror of radius of curvature 10cm. A glass slabe of thickness 3cm and refractive index 1.5 is then placed close to the irror in the space between the object and the mirror. The distance of the near surface of the slabe from the mirror is 1cm. The final image from the mirror will be formed at

An object is placed 21 cm in front of a concave mirror of radius of curvature 10cm. A glass slabe of thickness 3cm and refractive index 1.5 is then placed close to the irror in the space between the object and the mirror. The distance of the near surface of the slabe from the mirror is 1cm. The final image from the mirror will be formed at