NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 724 - 727 of 2320

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Question number: 724

» Experimental Skills » Screw Gauge

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MCQ▾

Question

A T shaped object, dimensions shown in the figure, a1 lying on a smooth floor. A force ‘F is applied at the poi: P parallel to AB, such that the object has only the translational motion without rotation. Find the location of P with respect to C

Object on smooth floor - location of P with respect to C

Object on Smooth Floor - Location of P with Respect to C

Choices

Choice (4)Response

a.

b.

c.

d.

I

Question number: 725

» Electromagnetic Induction & Alternating Currents » Faraday's Law

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MCQ▾

Question

A rectangular coil of size 10 cm x 20 cm has 60 turns. It is rotating about one of its diagonals in magnetic field 0.5 Wb/m 2 with a rate of 1800 revolution per minute. The induced e. m. f. in the coil can be,

(1) 111 V (2) 112 V

(3) 113 V (4) 114 V

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

Choices

Choice (4)Response

a.

1,2 and 3 are correct

b.

2 and 4 are correct

c.

1 and 2 are correct

d.

1 and 3 are correct

Question number: 726

» Electromagnetic Induction & Alternating Currents » Peak and RMS Value of AC

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MCQ▾

Question

An alternating voltage is connected to a 1 µF capacitor through an ac ammeter. The reading of the ammeter will be

Choices

Choice (4)Response

a.

10 mA

b.

20 mA

c.

80 mA

d.

40 mA

Question number: 727

» Experimental Skills » Screw Gauge

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MCQ▾

Question

Three identical metal balls each of radius r are placed touching each other on a horizontal surface such that an equilateral triangle is formed, when centers of three balls are joined. The center of the mass of system is located at

Choices

Choice (4)Response

a.

Centre of one of the balls

b.

Point of intersection of the medians

c.

Line joining centers of any two balls

d.

Horizontal surface

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