NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1892 - 1896 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: 1892

» Oscillations and Waves » Reflection of Waves

Assertion-Reason▾

Assertion (Ꭺ)

In the case of a stationary wave, a person hears a loud sound at the nodes as compared to the antinodes.

Reason (Ꭱ)

In a stationary wave all the particles of the medium vibrate in phase.

Choices

Choice (4) Response

a.

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

b.

Ꭺ is false but Ꭱ is true

c.

Ꭺ is true but Ꭱ is false

d.

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

Question number: 1893

» Communication System » Propagation of Electromagnetic Waves in the Atmosphere

MCQ▾

Question

While tuning in a certain broadcast station with a receiver, we are actually,

Choices

Choice (4) Response

a.

Varying the local oscillator frequency

b.

Tuning the antenna

c.

Varying the frequency of the radio signal to be picked

d.

Question does not provide sufficient data or is vague

Question number: 1894

» Experimental Skills » Potentiometer

MCQ▾

Question

Potential gradient of a potentiometer is equal to

Choices

Choice (4) Response

a.

resistance per unit length

b.

emf per unit length

c.

potential drop per unit length

d.

current per unit length

Question number: 1895

» Experimental Skills » Zener Diode

MCQ▾

Question

A Zener diode operates on which of the following bias?

Choices

Choice (4) Response

a.

forward and reverse bias.

b.

No biasing is required for it.

c.

Reverse bias

d.

Forward bias

Question number: 1896

» Experimental Skills » Meter Bridge

MCQ▾

Question

If the wire in the experiment to determine the resistivity of a material using meter bridge is replaced by copper or hollow wire the balance point i. e. null point shifts to

Choices

Choice (4) Response

a.

left

b.

right

c.

at same point

d.

All of the above

f Page
Sign In