A beam of white light is incident normal...

A beam of white light is incident normally on a plane surface absorbing 70% of the light and reflecting the rest. If the incident beam of light is power P, find the force exerted by it on the surface.

`(IA)/(c)(1-eta)`

`(IA)/(c)(eta+1)`

`(IA)/(c)(2eta-1)`

`(IA)/(c)(2-eta)`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

NTA NEET SET 27
NTA MOCK TESTS|Exercise PHYSICS|45 Videos
NTA NEET SET 29
NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

A beam of white light is incident normally on a plane surface absorbing 70% of the light and reflecting the rest. If the incident beam carries 30 W of power, find the force exerted by it on the surface.

A beam of white light is incident normaly on a plane surface absorbing 70% of the light and reflecting the rest. If the incident beam carries 10 w of power, find the force exerated by it on the surface.

A beam of white light is incident normally on a plane surface absorbing 50% of the light and reflecting the rest. If the incident beam carries 10 W of power, find the force exerted by it on the surface.

A beam of white light is incident normally on a plane surface absorbing (70%) of the light and reflecting the rest. If the incident beam carries 10 W of power , find the force exerted by it on the surface .

A beam of white light is incident normally on a plane surface absorbing 70% of the light and reflecting the rest. If the incident beam carries 20 W of power, the force exerted by it on the surface is

A parallel beam of the light is incident normally on a plane surface absorbing 40% of the light and reflecting the rest. If the incident beam carries 10 watt power, find the force exerted by it on the surface.

A parallel beam of light is incident normally on a plane surface absorbing 40% of the light and reflecting the rest. If the incident beamm carries 60 W of power, the force exerted by it on the surface is

NTA MOCK TESTS-NTA NEET SET 28-PHYSICS

An object of mass 1 kg executes simple harmonic oscillations along the...
Text Solution
|
A child swinging on a swing in sitting position, stands up, then the t...
Text Solution
|
In the photoelectric effect, the maximum speed of electrons is found t...
Text Solution
|
A beam of white light is incident normally on a plane surface absorbin...
Text Solution
|
A stream of water of density rho, cross sectional area A, and speed u ...
Text Solution
|
A spherical ball is dropped in a long column of viscous liquid. Which ...
Text Solution
|
A concave mirror used for face viewing has focal length of 0.4 m. The ...
Text Solution
|
एक प्रकाश किरण प्रिज्म abc पर ( अपवर्तनांक = sqrt3) चित्रानुसार आपतित ...
Text Solution
|
In Fig a sphere of radius 2 m rolls on a plank. The accelerations of t...
Text Solution
|
A uniform rod is rotating about a horizontal axis as shown. The rod is...
Text Solution
|
The temperature dependence of resistance of Cu and undoped Si in the t...
Text Solution
|
In the circuit shown in the following figure, the value of Y is
Text Solution
|
The current through an ideal PN-junction shown in the following circui...
Text Solution
|
The R.M.S. speed of oxygen molecules at temperature T (in kelvin) is "...
Text Solution
|
Obtain the relation between degrees of freedom of a gas and ratio of t...
Text Solution
|
If the force is given by F=at+bt^(2) with t is time. The dimensions of...
Text Solution
|
In the Young's double slit experiment, the intensities at two points P...
Text Solution
|
The anode voltage of photocellis kept fixed. The wavelength lambda of ...
Text Solution
|
The wavelength of H(alpha) line in the hydrogen spectrum is found to b...
Text Solution
|
The speed v reached by a car of mass m in travelling a distance x, dri...
Text Solution
|