A jar of height H is half-filled with a liquid of refractive index μ1 and the remaining half with a liquid of refractive index μ2. The apparent depth of a coin placed at the bottom of the jar when seen from the vertically upward direction is:

1. μ1μ2(μ1+μ2).H

2. μ1+μ2μ1μ2.H

3. μ1+μ22μ1μ2.H

4. μ1+μ22.H

Subtopic:  Refraction at Plane Surface |
 66%
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NEET 2023 - Target Batch - Aryan Raj Singh
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If the critical angle for a liquid A is 60° and critical angle for the liquid B is 45°, then the critical angle for a ray traveling from A to B will be:

1. Less than 45°

2. More than 60°

3. Between 45° and 60°

4. Does not exist

Subtopic:  Total Internal Reflection |
From NCERT
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

A convex lens made of 5 different transparent materials is used to make an image of an object placed in front of it. The number of images formed will be :

(1) 2 

(2) 3

(3) 4

(4) 5

Subtopic:  Refraction at Curved Surface |
 70%
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If the plane surface of a planoconvex lens is silvered, then it will behave as :

(1) Converging mirror

(2) Diverging mirror

(3) Plane mirror

(4) May behave as (1) or (2)

Subtopic:  Reflection at Spherical Surface |
 52%
From NCERT
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Chromatic aberration of a lens can be corrected by

(1) Reducing its aperture

(2) Proper polishing of its surfaces

(3) Suitable combining it with another lens

(4) Providing different suitable curvature to its surfaces

Subtopic:  Lenses |
 57%
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A small air bubble is at the centre of a glass sphere of radii 5 cm. When it is viewed from outside what will be the position of the image?

Refractive index of glass is 1.5

(1) At the same place as that of object

(2) 103 cm from the surface near the eye

(3) 7.5 cm from the surface of the sphere near the eye

(4) At infinity

Subtopic:  Refraction at Curved Surface |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

The refractive indices of a prism for red, yellow and violet colours are 1.52, 1.57 and 1.62 respectively, then the dispersive power of the material of prism will be:

(1) 1.57

(2) 15.7

(3) 5.7

(4) 1

Subtopic:  Prisms |
 75%
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The magnification of a compound microscope for the final image at least distance of distinct vision is 90. The magnification of the objective lens is 15. The value of the focal length of the eyepiece will be

(1) 5 cm

(2) 6 cm

(3) 16 cm

(4) 12 cm

Subtopic:  Simple & Compound Microscope |
 66%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

A terrestrial telescope is made by introducing an inverting lens of focal length fi. The focal length of objective and eyepiece are fo and fe. Then the length of the telescope for normal adjustment is

(1) fo+fe+fi

(2) fo+fe+2fi

(3) 2fo+fe+fi

(4) fo+fe+4fi

Subtopic:  Telescope |
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NEET 2023 - Target Batch - Aryan Raj Singh
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The reflected light wave and incident light wave differ each other by a phase angle of 1800, when

1. Light enters into glass from air

2. Light enters into air from glass

3. Light enters into glass from diamond

4. Light enters into water from glass

Subtopic:  Refraction at Plane Surface |
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NEET 2023 - Target Batch - Aryan Raj Singh
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