Ray Optics-Total Internal Reflection (AIIMS Physics): Questions 1 - 5 of 5

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Question number: 1

» Ray Optics » Total Internal Reflection

Appeared in Year: 2002

MCQ▾

Question

Brilliance of diamond is due to – [AIIMS, MP PMT 2003]

Choices

Choice (4) Response
a.

Total internal reflection

b.

Shape

c.

Cutting

d.

Reflection

Question number: 2

» Ray Optics » Total Internal Reflection

Appeared in Year: 1998

MCQ▾

Question

Mirage’ is a phenomenon due to [AIIMS; MP PET 2002; AFMC 2003]

Choices

Choice (4) Response
a.

Total internal reflection of light

b.

Refraction of light

c.

Reflection of light

d.

Diffraction of light

Question number: 3

» Ray Optics » Total Internal Reflection

Appeared in Year: 2005

MCQ▾

Question

What should be the maximum acceptance angle at the air-core interface of an optical fiber if n1 and n2 are the refractive indices of the core and the cladding, respectively – [AIIMS]

Choices

Choice (4) Response
a.

sin1n12n22

b.

[tan1n2n1]

c.

sin1(n2n1)

d.

[tan1n1n2]

Question number: 4

» Ray Optics » Total Internal Reflection

Appeared in Year: 2005

Assertion-Reason▾

Assertion (Ꭺ)

Diamond glitters brilliantly.

Reason (Ꭱ)

Diamond does not absorb sunlight.

Choices

Choice (4) Response
a. Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ
b. Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ
c. Ꭺ is false but Ꭱ is true
d. Both Ꭺ and Ꭱ are false

Question number: 5

» Ray Optics » Total Internal Reflection

Appeared in Year: 2006

Assertion-Reason▾

Assertion (Ꭺ)

In optical fiber, the diameter of the core is kept small.

Reason (Ꭱ)

This smaller diameter of the core ensures that the fiber should have incident angle more than the critical angle required for total internal reflection.

Choices

Choice (4) Response
a. Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ
b. Ꭺ is true but Ꭱ is false
c. Ꭺ is false but Ꭱ is true
d. Both Ꭺ and Ꭱ are false

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