NEET (NTA-National Eligibility cum Medical Entrance Test) Physics: Questions 972 - 977 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

Passage

Read the passage given below and answer the questions that follow:

In both mirror - at 20 cm distance from mirror M1

In Both Mirror - at 20 Cm Distance From Mirror M1

In figure a plane mirror placed on X- axis. And angle between mirror M1 and X-axis is 450. A concave mirror (M2) is placed at 20 cm distance from mirror M1.

A plane mirror (M 1) and a concave mirror (M 2) of focal length 10 cm are arranged as shown in figure. An object is kept at origin. Answer the following questions. (Consider image formed by single reflection in all cases)

Question number: 972 (2 of 2 Based on Passage) Show Passage

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

MCQ▾

Question

The co-ordinates of image formed by plane mirror are

Choices

Choice (4) Response

a.

(-20 cm, 0)

b.

(10 cm, -10 cm)

c.

(10 cm, - 60 cm)

d.

(10 cm, 10 cm)

Question number: 973

» Electromagnetic Waves » Electromagnetic Spectrum » Radio Waves

Assertion-Reason▾

Assertion (Ꭺ)

Radio waves can be polarized.

Reason (Ꭱ)

Sound waves in air are longitudinal in nature.

Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Ꭺ is false but Ꭱ is true

c.

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

d.

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

Question number: 974

» Ray Optics » Lens Maker's Formula and Lens Formula

MCQ▾

Question

The focal length of the lens of the human eye is maximum when it is looking at an object at,

Choices

Choice (4) Response

a.

Infinity

b.

Very near the eye.

c.

25 cm from the eye

d.

100 cm from the eye

Passage

Read the passage given below and answer the questions that follow:

A student constructs a series RLC circuit. While operating the circuit at a frequency f she uses an AC voltmeter and measures the potential difference across each device as (∆V R) = 8.8 V, (∆V L) = 2.6V and (∆V C) = 7.4V.

Question number: 975 (1 of 3 Based on Passage) Show Passage

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

MCQ▾

Question

What result should the student expect for a measurement of the amplitude E m of the potential difference across the power supply?

Choices

Choice (4) Response

a.

18.8 V

b.

13.6 V

c.

4.0 V

d.

10.0 V

Question number: 976 (2 of 3 Based on Passage) Show Passage

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

MCQ▾

Question

The circuit is constructed so that the inductor is next to the capacitor. What result should the student expect for a measurement of the combined potential difference (∆V L + ∆V C) across the inductor and capacitor?

Choices

Choice (4) Response

a.

10.0 V

b.

4.8 V

c.

7.4 V

d.

7.8 V

Question number: 977 (3 of 3 Based on Passage) Show Passage

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

MCQ▾

Question

What will happen to the value of ( ∆V L) if the frequency is adjusted to increase the current through the circuit?

Choices

Choice (4) Response

a.

(∆V L) will remain the same regardless of any changes to f.

b.

There is not enough information to answer the question.

c.

(∆V L) will increase.

d.

(∆V L) will decrease.

f Page
Sign In