Home
Class 12
PHYSICS
Two sources of light are at distance 0.6...

Two sources of light are at distance 0.6m and 0.9m on either side of a screen for matching. When a glass plate is introduced between the weaker source and the screen, the other source has to be moved 0.2m farther to match the illumination. Calculate the percentage of the light stopped by the glass plate introduced.

Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS

    SL ARORA|Exercise Problems For Self Practice|109 Videos

  • RAY OPTICS

    SL ARORA|Exercise TYPE F|10 Videos

  • RAY OPTICS

    SL ARORA|Exercise Problems|26 Videos

  • OPTICAL INSTRUMENTS

    SL ARORA|Exercise Problems for self practice|35 Videos

  • SOLIDS AND SEMICONDUCTOR DEVICES

    SL ARORA|Exercise PROBLEM_TYPE|9 Videos

Similar Questions

Explore conceptually related problems

Two sources of light of equal illuminating power are placed at a distance of 1.2m from one another. Where should a screen be placed between the two sources so that intensity of illumination due to one of the sources is 4 times due to that of the other.

A point source of light 'S' at a distance d from the screen A produces light intensity I_(0) at the centre of the screen. If a completely reflecting mirror M is placed at a distance d behind the source as shown in the figure, find the intensity at the centre of the screen

A photoelectric cell is illuminated by a point source of light 1m away. When the source us shifted to 2m then-

Two sources of light 0.85 mm apart are illuminated by a light of wavelenths, 6000Å . The phase difference between the two waves intefering on screen,.1.7 m away from the slite at a point 2.5 mm from the central bright band is nearly.

A photoelectric cell is illuminated by a point source of light 1 m away. When the source is shifted to 2 m then