Quiz on Physics Set 140

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Quiz on Physics Set 140 :

Question 1 : 

Water from soil enters into the root hairs owing to
A. Root pressure
B. Osmotic pressure
C. Atmospheric pressure
D. Capillary pressure

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Correct Ans: Option D

Question 2 : 

What is the reason for twinkling of stars -
A. Atmospheric reflection
B. Atmospheric refraction
C. Total internal reflection
D. Dispersion of light

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Correct Ans: Option B

Question 3 : 

Which of the following one of the following is a non-dimensional quantity -
A. Co-efficient of viscocity
B. Gas constant
C. Strain
D. Plank's constant

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Correct Ans: Option C

Question 4 : 

When a capacitor is connected to a battery
A. The current in the circuit keeps on increasing, reaching a maximum value when the capacitor is charged to the voltage of the battery
B. A current flows in the circuit for some time and then decreases to zero
C. No current flows in the circuit at all
D. An alternating current flows in the circuit

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Correct Ans: Option B

Question 5 : 

The isotope of Uranium used in atomic reactors is
A. U235
B. U237
C. U232
D. U236

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Correct Ans: Option A

Question 6 : 

The element used for making solar cells is
A. Magnesium
B. Silicon
C. Calcium
D. Sodium

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Correct Ans: Option B

Question 7 : 

The device which transfer the signal from low resistance region to high resistance region is
A. capacitor
B. transistor
C. inductor
D. diode

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Correct Ans: Option B

Question 8 : 

Spectacles used for viewing 3D films have
A. Concave lens
B. Convex lens
C. Polaroids
D. Bifocal lens

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Correct Ans: Option C

Question 9 : 

The fundamental characteristic of all waves are
A. Wavelength
B. Frequency
C. Velocity
D. All the above

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Correct Ans: Option D

Question 10 : 

Air is said to be saturated when:
A. it contains max. content of water vapour
B. its pressure is min.
C. its thickness is max.
D. it blows over the barren land

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Correct Ans: Option A

Quiz Summary

Here the correct answers of every question in this quiz.

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


Total Questions: 10
Your score:
Subject: Physics
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