Home
Class 12
PHYSICS
An observer looks at an object kept at a...

An observer looks at an object kept at a distance 30 cm in air. If a rectangular glass plate (`mu` =1.5) is placed between the observer and the object with its thick-ness along the line of observation, the object appears to the observer to be at a distance 25 cm. Find the thickness of glass plate. Position of the glass plate is now shifted (i) from object towards observers (ii) from observer towards the object How does it change the apparent position of the object as seen by the observer?

Text Solution

Verified by Experts

2.73 cm above the base
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    MODERN PUBLICATION|Exercise PRACTICE PROBLEMS (3)|18 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    MODERN PUBLICATION|Exercise PRACTICE PROBLEMS (4)|6 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    MODERN PUBLICATION|Exercise PRACTICE PROBLEMS (1)|13 Videos

  • NUCLEI

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST FOR BOARD EXAMINATION|15 Videos

  • SEMICONDUCTOR ELECTRONICS METERIALS DEVICES AND SIMPLE CIRCUITS

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST FOR BOARD EXAMINATION|12 Videos

Similar Questions

Explore conceptually related problems

Find the apparednt distance between the observer and the object shwon in the figure and shift in the position of object.

An observer moves with a constant speed along the line joining two stationary objects. He will observe that the two objects

An observer moves with a constant speed along the line joining two stationary objects. He will obserbe that the two objects

A point object is placed at a distance of 25cm from a convex lens. Its focal length is 22cm. A glass slab of refractive index 1.5 is inserted between the lens and the object, then the image is formed at infinity. Find the thickness of the glass slab (in cm).

Onc face of a rectangular glass plate 6 cm thick is silcerd. An object held 8 cm in front of the first face, froms an image 12 cm behind the silvered face. The refractive index of the glass is

In an ideal YDSE when a glass plate ( mu =1.5) of thickness t is introduced in the path of one of the interfering beams the intensity at the position where the central maximum occured previously remains unchanged. The maximum thickness of the glass plate is:

An object is placed on the principle axis of a concave mirror of focal length 10cm at a distance of 21cm from it. A glass slab is placed between the mirror and the object as shown in figure. Find the distance of final image formed by the mirror.

If t is the real thickness mu is refractive index of a glass slab then the shift of the image with refernce to the object is given by