NEET (National Eligibility cum Medical Entrance Test) Physics: Questions 1057 - 1061 of 2142

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Question number: 1057

» Ray Optics » Mirror Formula

MCQ▾

Question

There is a convex mirror of radius 50 cm. The image of a point at a distance 50 cm from the pole of mirror on its axis will be formed at:

Convex mirror of radius 50 cm

Convex Mirror of Radius 50 Cm

In figure there is a convex mirror of radius 50 cm. the object distance is 50 cm from the mirror.

Choices

Choice (4) Response

a.

16.67 cm behind the mirror

b.

Infinity

c.

Pole

d.

Focus

Question number: 1058

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

MCQ▾

Question

A convex lens of focal length 20 cm is placed in contact with a diverging lens of unknown focal length. The lens combination acts as a converging lens and has a focal length of 30 cm. What is the focal length of the diverging lens

Choices

Choice (4) Response

a.

- 30 cm

b.

- 60 cm

c.

- 10 cm

d.

- 90 cm

Question number: 1059

» Ray Optics » Magnification

MCQ▾

Question

A concave minor of focal length f 0 (in magnitude) produces a reals image n time the size of the object. What is the distance of the object from the mirror?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 1060

» Electromagnetic Waves » Electromagnetic Spectrum » Visible

MCQ▾

Question

The range of wavelength of the visible light is

Choices

Choice (4) Response

a.

4, 000 Å to 8, 000 Å

b.

8, 000 Å to 10, 000 Å

c.

10 Å to 100 Å

d.

10, 000 Å to 15000 Å

Question number: 1061

» Electromagnetic Induction & Alternating Currents » Power in AC Circuits

MCQ▾

Question

An ac supply gives 30 V, rms which passes through a 10 Ω resistance. The power dissipated in it is

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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