NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1058 - 1062 of 2142

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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.

b.

c.

d.

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.

b.

c.

d.

Question number: 1062

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

MCQ▾

Question

An alternating current source of frequency 100 Hz is joined to a combination of a resistance, a capacitance and a inductance in series. The potential difference across the inductance, the resistance and the capacitor is 46,8 and 40 volt respectively. The electromotive force of alternating current source in volt is

Choices

Choice (4) Response

a.

94

b.

14

c.

76

d.

10

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