NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 2072 - 2075 of 2184

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Question number: 2072

» Electrostatics » Capacitors

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MCQ▾

Question

A parallel – plate capacitor of area A, plate separation and capacitance is filled with four dielectric materials having dielectric constant and as shown in the figure below. If a signal dielectric material is to be used to have the same capacitance C in this capacitor, then its dielectric constant is given by,

A parallel plate capacitor of four dielectric materials

A Parallel Plate Capacitor of Four Dielectric Materials

In figure a parallel plate capacitor of four dielectric material is given.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 2073

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

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Appeared in Year: 2016

MCQ▾

Question

An air bubble in a glass slab with refractive index 1.5 (near normal incidence) is 5 cm deep when viewed from one surface and 3 cm deep when viewed from the opposite face. The thickness (in cm) of the slab is –

Choices

Choice (4) Response

a.

12

b.

10

c.

8

d.

16

Question number: 2074

» Electromagnetic Induction & Alternating Currents » Reactance and Impedance

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Appeared in Year: 2016

MCQ▾

Question

The potential differences across the resistance, capacitance and inductance are and respectively in an L-C-R circuit. The power factor of this circuit is –

Choices

Choice (4) Response

a.

b.

0.4

c.

0.8

d.

0.5

Question number: 2075

» Electromagnetic Induction & Alternating Currents » Quality Factor

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Appeared in Year: 2016

MCQ▾

Question

Which of the following combination should be selected for better tuning of an L-C-R circuit used for communication?

Choices

Choice (4) Response

a.

b.

c.

d.