Refraction of Light Test

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Refraction of Light Test - 1

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Question 1
1 / -0

When an object is placed at 2f of convex llens, What is the nature and position of image formed?

A
At 2f, real, magnified, erect

B
At 3f, real, magnified, erect

C
At 2f, real,same size, inverted

D
At f, real, magnified, in
Question 2
1 / -0

When an object is placed between 2f and f, Where is the image of the object formed and find the nature of image formed.

A
Beyond 2f, real and erect

B
Beyond 2f, real and inverted

C
At infinity, real, magnified, inverted

D
None of these
Question 3
1 / -0

What is the value of speed of light in medium if the refractive index of medium with respect to air is 5/4"?

Take c = 3 x 10⁸ m/sec.

A
2.4 x 10⁸ m/sec

B
4.2 x 10⁶ m/sec

C
2.4 x 10⁶ m/sec

D
none of these
Question 4
1 / -0

Which of the following is not true regarding rules of refraction?

A
Light bends away from the normal while traveling from an optically denser to a rarer medium.

B
Light bends while traveling from one medium to another only if it is incident on the boundary at an angle to the normal.

C
Light does not bends if it is incident perpendicular to the boundary or along the normal.

D
All are correct.

Solution

All the given options are correct, so 4^th option is the answer.
Question 5
1 / -0

What is not true regarding a prism?

A
A prism is a piece of glass

B
A prism has 2 rectangular faces

C
A prism has triangular faces

D
both (2) and (3)

Solution

A prism is a transparent optical element with more than two flat, polished surfaces that refract light. At least two of the flat surfaces must have an angle between them. The exact angles between the surfaces depend on the application.
Question 6
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Which of the following is the possible relation in case of prism (triangular) prism?

A
< i + < d = < A + < e

B
< i + < e = < A + < d

C
< i - < e = < A + < d

D
< i - < e = < A - < d

Solution

< i + < e = < A + < d where < i - incidence angle,

above relation is always true about the refraction of light by prism.

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Re-Attempt Weekly Quiz Competition

Refraction of Light Test - 1

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Refraction of Light Test - 1

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SHARING IS CARING

Question 1

At 2f, real, magnified, erect

At 3f, real, magnified, erect

At 2f, real,same size, inverted

At f, real, magnified, in

Question 2

Beyond 2f, real and erect

Beyond 2f, real and inverted

At infinity, real, magnified, inverted

None of these

Question 3

2.4 x 108 m/sec

4.2 x 106 m/sec

2.4 x 106 m/sec

none of these

Question 4

Light bends away from the normal while traveling from an optically denser to a rarer medium.

Light bends while traveling from one medium to another only if it is incident on the boundary at an angle to the normal.

Light does not bends if it is incident perpendicular to the boundary or along the normal.

All are correct.

Solution

Question 5

A prism is a piece of glass

A prism has 2 rectangular faces

A prism has triangular faces

both (2) and (3)

Solution

Question 6

< i + < d = < A + < e

< i + < e = < A + < d

< i - < e = < A + < d

< i - < e = < A - < d

Solution

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2.4 x 10⁸ m/sec

4.2 x 10⁶ m/sec

2.4 x 10⁶ m/sec