Home
Class 12
PHYSICS
A pure red glass plate when placed in th...

A pure red glass plate when placed in the path of the light absorbs everything except_____

A

yellow

B

black

C

green

D

red

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

A pure green glass plate when, placed in the path of white light, absorbs___.

A glass-slab is placed in the path of convergent light. The point of convergence of light ……………….. .

A small disc is placed in the path of the light from distance source. Will the center of the shadow be bright or dark?

When a ray of light travels from one transparent medium into another obliquely, the path of the light undergoes ____________.

A beam of light converges at a point P. Nnw a lens is placed in the path of the convergent beam 12cm from P. At what point does the beam converge if the lens is (a) a convex lens of focal length 20 cm, and (b) a concave lens of focal length 16 cm ?

A light ray is incident at an angle of 45^@ with the normal to a sqrt2 cm thick plate (mu=2.0) . Find the shift in the path of the light as it emerges out from the plate.

A sphere of radius 1.00 cm is placed in the path of a parallel beam of light of large aperture. The intensity of the light is 0.50 W cm^-2 . If the sphere completely absorbs the radiation falling on it, find the force exerted by the light beam on the sphere.

Answer the following questions: (c) When a tiny circular obstacle is placed in the path of light from a distant source, a bright spot is seen at the centre of the shadow of the obstacle. Explain why?

In Young's experiment, the upper slit is covered by a thin glass plate of refractive index 1.4 while the lower slit is covered another glass plate having the same thickness as the first one but having refractive index Interference pattern is observed using light of wavelength 5400A. It is observed that the point P on the screen where the central maximum (n=0) fell before the glass were inserted now has 3/4 th original intensity. It is further observed that what used to be the fifth maximum earlier, lies below the point P while the sixth minimum lies above P. Calculate the thickness of the glass plate.