Quiz on Physics Set 52

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Quiz on Physics Set 52 :

Question 1 : 

Radio telescopes are better than optical telescopes because
A. They can detect faint galaxies which no optical telescope can
B. They can work even in cloudy conditions
C. They can work during the day and night
D. All of the above

View Answer
Correct Ans: Option D

Question 2 : 

A moving coil instrument can be used to measure
A. High frequency alternating current
B. Low frequency alternating current
C. Direct current
D. Direct current and alternating current both

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Correct Ans: Option C

Question 3 : 

Open circuit test on transformer measures
A. Impedance and insulation resistance
B. Voltage regulation
C. Eddy current loss
D. Core loss

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Correct Ans: Option D

Question 4 : 

Which of the following is used as a moderator in nuclear reactor?
A. Thorium
B. Radium
C. Ordinary water
D. Graphite

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Correct Ans: Option D

Question 5 : 

The normal threshold of hearing is around
A. 45-60 db
B. 100-120 db
C. 60-80 db
D. 25-45 db

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Correct Ans: Option D

Question 6 : 

Which of the statement is incorrect about the simple microscope?
A. Magnification of microscope is inversely proportional to the least distance of distinct vision.
B. A convex lens of microscope with shorter focal length yields higher magnification.
C. Biology students use to see the slides.
D. It is not used for magnification of an object at far away from the observer.

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Correct Ans: Option A

Question 7 : 

Suppose you drive to Delhi (200 km away) at 400 km/hr and return at 200 km/hr. What is yours average speed for the entire trip?
A. Zero
B. 300 Km/hr
C. Less than 300 Km/hr
D. More than 300 Km/hr

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Correct Ans: Option C

Question 8 : 

A system undergoes a reversible adiabatic process. The entropy of the system
A. increases
B. decreases
C. remains constant
D. may increase or may decrease

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Correct Ans: Option C

Question 9 : 

A narrow white light beam fails to converge at a point after going through a converging lens. This defect is known as
A. polarization
B. spherical aberration
C. chromatic aberration
D. diffraction

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Correct Ans: Option C

Question 10 : 

In a room where the temperature is 30°C a body cools from 61°C to 59°C in 4 minutes. The time taken by the body to cool from 51°C to 49°C will be about
A. 4 minutes
B. 6 minutes
C. 5 minutes
D. 8 minutes

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Correct Ans: Option B

Quiz Summary

Here the correct answers of every question in this quiz.

Q.1 [D],     Q.2 [C],     Q.3 [D],     Q.4 [D],     Q.5 [D],     Q.6 [A],     Q.7 [C],     Q.8 [C],     Q.9 [C],     Q.10 [B],    


Total Questions: 10
Your score:
Subject: Physics
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