NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1096 - 1100 of 2184

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Question number: 1096

» Ray Optics » Deviation and Dispersion of Light by a Prism

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MCQ▾

Question

A ray of light fall normally on a refracting face of a prism of refractive index 1.5. Find the angle of the prism if the ray just fails to emerge from the prism.

Choices

Choice (4) Response

a.

55°

b.

42°

c.

22°

d.

12°

Question number: 1097

» Ray Optics » Reflection and Refraction of Light » Smooth Surface

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MCQ▾

Question

Which of the following form (s) a virtual and erect image for all positions of the object?

(1) Convex lens (2) Concave lens

(3) Convex mirror (4) Concave mirror

Select the correct answers and mark it according to the following codes:

Codes:

Choices

Choice (4) Response

a.

1 and 2 are correct

b.

1 and 3 are correct

c.

1,2 and 3 are correct

d.

2 and 4 are correct

Question number: 1098

» Ray Optics » Lens Maker's Formula and Lens Formula

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MCQ▾

Question

Two thin lenses of focal length 60 & -20 cm in contact have a resultant focal length of,

Choices

Choice (4) Response

a.

-30 cm

b.

+15 cm

c.

-15 cm

d.

+30 cm

Question number: 1099

» Ray Optics » Resolving Power of Microscopes and Astronomical Telescopes

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MCQ▾

Question

A glass plate 4 mm thick is viewed from the above through a microscope. The microscope must be lowered 2.58 mm as the operator shifts from viewing the top surface to viewing the bottom surface through the glass. What is the index of refraction of the glass?

Choices

Choice (4) Response

a.

1.21

b.

1.61

c.

1.55

d.

3.24

Question number: 1100

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

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MCQ▾

Question

In a series LCR circuit capacitance is changed from C to 2C. For the resonant frequency to remain unchanged, the inductance would be changed from L to

Choices

Choice (4) Response

a.

b.

c.

2 L

d.

4 L