WB JEE 2008 | Geometrical Optics Question 1 | Physics

WB JEE 2008

MCQ (Single Correct Answer)

-0.25

The refractive indices of glass and quartz w.r.t. air are 3/2 and 12/5 respectively. The refractive index of quartz w.r.t. glass is

8/5

5/8

5/18

18/5

WB JEE 2008

MCQ (Single Correct Answer)

-0.25

The radius of curvature of a concave mirror is 24 cm and the image is magnified by 1.5 times. The object distance is

20 cm

8 cm

16 cm

24 cm

WB JEE 2008

MCQ (Single Correct Answer)

-0.25

A point source of light is kept at a depth of h in water of refractive index 4/3. The radius of the circle at the surface of water through which light emits is

$${3 \over {\sqrt 7 }}\,h$$

$${{\sqrt 7 } \over 3}\,h$$

$${{\sqrt 3 } \over 7}\,h$$

$${7 \over {\sqrt 3 }}\,h$$

WB JEE 2023

MCQ (Single Correct Answer)

-0.25

Three identical convex lenses each of focal length $$\mathrm{f}$$ are placed in a straight line separated by a distance $$\mathrm{f}$$ from each other. An object is located at f/2 in front of the leftmost lens. Then,

WB JEE 2023 Physics - Geometrical Optics Question 1 English

Final image will be at f/2 behind the rightmost lens and its magnification will be $$-1$$.

Final image will be at f/2 behind the rightmost lens and its magnification will be $$+1$$.

Final image will be at f behind the rightmost lens and its magnification will be $$-1$$.

Final image will be at f behind the rightmost lens and its magnification will be $$+1$$.

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