GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 110

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 110

1091). A lens with power + 1 dioptre must have its focal length equal to
A). 10 m
B). 10 cm
C). 100 cm
D). 1000 cm

Answer: 100 cm


   
1092). The velocity of light in air is 3 x 10°cm/sec. Its velocity in glass whose µ =1.5 will be
A). 4.5×10^10 cm/sec
B). 3×10^10 cm/sec
C). 2×10^10 cm/sec
D). 9×10^10 cm/sec

Answer: 2×10^10 cm/sec


   
1093). The density of water is maximum at
A). 0°C
B). 4°C
C). 100°C
D). 10°C

Answer: 4°C


   
1094). During change of state, the temperature
A). rises
B). falls
C). remains constant
D). may rise or may fall

Answer: remains constant


   
1095). Consider the following statements :
Assertion (A) : Thunder and lightning happen in the sky at the same time. But lightning reaches us earlier and thunder late. 

Reason (R) : Since light travels faster than sound. Lightning reaches us earlies and thunder later. 

Now select your answer according to the coding scheme is given below:
A). (A) is correct, but (R) is wrong
B). (A) is wrong, but (R) is correct
C). (A) and (R) both are correct
D). (A) and (R) both are wrong

Answer: (A) and (R) both are correct



1096). The device that is used to determine the depth of the sea is
A). radar
B). fathometer
C). sonar
D). hydrometer

Answer: fathometer


   
1097). Match List-I correct with List-II and select your answer using the codes given below:
List-I                                         List-II
a) Electric potential                     1. watt
b) Electrical resistance                2. ampere
c) Electric current                       3. ohm
d) Electrical power                      4. volt

Below codes are given in A B C D order
A). 4 3 2 1
B). 1 3 4 2
C). 2 1 3 4
D). 1 2 3 4

Answer: 4 3 2 1


   
1098). In a step-down transformer
A). number of turns in primary is More than that in the secondary
B). number of turns in primary is less than that in the secondary
C). number of turns in primary & secondary are the same
D). none of these

Answer: number of turns in primary is More than that in the secondary


   
1099). Light from the sun reaches us in nearly
A). 2 minutes
B). 4 minutes
C). 8 minutes
D). 16 minutes

Answer: 8 minutes


   
1100). X-rays cannot penetrate through
A). glass
B). bone
C). tree
D). human flesh

Answer: bone