NEET Physics: Questions 1124 - 1127 of 2099

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Question number: 1124

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

MCQ▾

Question

Two plane mirrors are placed at an angle a so that a ray parallel to one mirror gets reflected parallel to the second mirror after two consecutive reflections. The value of a will be

Choices

Choice (4) Response
a.

30°

b.

60°

c.

75°

d.

90°

Question number: 1125

» Electrostatics » Capacitors

MCQ▾

Question

The charging current for a capacitor is 1 A, then the displacement current is

Choices

Choice (4) Response
a.

0

b.

2 A

c.

1 A

d.

0.5 A

Question number: 1126

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

MCQ▾

Question

Two plane mirrors are inclined at an angle of 30°. Then the first four images of an object O placed between the two mirrors are correctly represented by

Choices

Choice (4) Response
a.
Two mirrors arrangement (Option a)

Two Mirrors Arrangement (Option A)

Two mirrors are inclined at an angle of 300. I1, I2, I3, and I4 are first four images of object O.

b.
Two mirrors arrangement (Option b)

Two Mirrors Arrangement (Option B)

Two mirrors are inclined at an angle of 300. I1, I2, I3, and I4 are first four images of object O.

c.
Two mirrors arrangement (Option c)

Two Mirrors Arrangement (Option C)

Two mirrors are inclined at an angle of 300. I1, I2, I3, and I4 are first four images of object O.

d.
Two mirrors arrangement (Option d)

Two Mirrors Arrangement (Option D)

Two mirrors are inclined at an angle of 300. I1, I2, I3, and I4 are first four images of object O.

Question number: 1127

» Ray Optics » Resolving Power of Microscopes and Astronomical Telescopes

MCQ▾

Question

In a compound microscope the objective and the eye-piece have focal lengths of 0.95 cm and 5 cm respectively, and are kept at a distance of 20 cm. The last image is formed at a distance of 25 cm from the eye-piece. Calculate the total magnification.

Choices

Choice (4) Response
a.

75

b.

94

c.

84

d.

88

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