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Ray Optics [AIIMS (All India Institute of Medical Sciences) Physics]: Questions 1 - 5 of 18

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Question 1

Appeared in Year: 2002

Question

MCQ▾

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

Choices

Choice (4)Response

a.

Cutting

b.

Reflection

c.

Shape

d.

Total internal reflection

Question 2

Appeared in Year: 2005

Question

MCQ▾

A telescope has an objective lens of focal length 200 cm and an eye piece with focal length 2cm. If this telescope is used to see a 50 meter tall building at a distance of 2km, what is the height of the image of the building formed by the objective lens – [AIIMS]

Choices

Choice (4)Response

a.

5 cm

b.

2 cm

c.

10 cm

d.

1 cm

Question 3

Appeared in Year: 1998

Question

MCQ▾

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

Choices

Choice (4)Response

a.

Refraction of light

b.

Total internal reflection of light

c.

Reflection of light

d.

Diffraction of light

Question 4

Appeared in Year: 1995

Question

MCQ▾

Angle of prism is A and its one surface is silvered. Light rays falling at an angle of incidence 2A on first surface return back through the same path after suffering reflection at second silvered surface. Refractive index of the material of prism is – [AIIMS]

Choices

Choice (4)Response

a.

b.

c.

d.

Question 5

Question

MCQ▾

A lens is made of flint glass (refractive index = 1.5) . When the lens is immersed in a liquid of refractive index 1.25, the focal length –

Choices

Choice (4)Response

a.

Increases to a factor of 1.25

b.

Increases to a factor of 2.5

c.

Decreases to a factor of 1.2

d.

Increases to a factor of 1.2

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