NEET (National Eligibility cum Medical Entrance Test) Physics: Questions 400 - 402 of 2142

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2142 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 550.00 or

Question number: 400

» Electrostatics » Capacitors

Assertion-Reason▾

Assertion (Ꭺ)

If the distance between parallel plates of a capacitor is halved and dielectric constant is made three times, then the capacitance becomes 6 times.

Reason (Ꭱ)

Capacity of the capacitor does not depend upon the nature of the material of plates.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

Question number: 401

» Communication System » Sky and Space Wave Propagation

MCQ▾

Question

When the zero of the circular scale of a screw gauge coincides with the zero of the main scale before A and B come in contact then the instrument has which type of error?

Micrometer screw gauge

Micrometer Screw Gauge

Circular scale of screw gauge coincides with zero of main scale.

Choices

Choice (4) Response

a.

Can’t be said anything

b.

Positive zero error

c.

No zero error

d.

Negative zero error

Question number: 402

» Communication System » Sky and Space Wave Propagation

MCQ▾

Question

In a screw gauge, the zero of main scale coincides with fifth division of circular scale in figure (i). The circular divisions of screw gauge are 50. It moves 0.5 mm on main scale in one rotation. The diameter of the ball in figure (ii)

 Screw Gauge – With 50 circular divisions

Screw Gauge – With 50 Circular Divisions

The zero main scale coincides with fifth division of circular scale.

Screw Gauge with Ball

Screw Gauge With Ball

Measuring diameter of the ball

Choices

Choice (4) Response

a.

1.25mm

b.

1.20mm

c.

1.25rnm

d.

2.20mm

f Page
Sign In