GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 103

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 103

1021). The primary colours used in colour T.V. is
A). Green, Yellow, Violet
B). Violet, Red, Orange
C). Green, Red, Blue
D). Blue, Green, violet

Answer: Green, Red, Blue


   
1022). The emission of a ß -particle in radio activity
A). increases the atomic number by one
B). decreases the atomic number by one
C). increases the mass number by one
D). decreases the mass number by one

Answer: increases the atomic number by one


   
1023). Match List I correct with List II and select your answer by using the codes given below:
List-I                                                           List-II
a) Electrical capacity                                    1. ohm
b) Electric current                                        2. Farad
c) Electromotive force                                  3. Ampere
d) Electric resistance                                   4. volt

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

Answer: 2 3 4 1


   
1024). Consider the following statements :
Assertion (A) : The velocity of sound in solids 4 is generally greater than that in gases , 

Reason (R) : The density of solids is more than that of gases
A). Both (A) and (R) are true and (R) is the correct explanation of (A)
B). Both (A) and (R) are true, but (R) is not the correct explanation of (A)
C). (A)is true, but (R) is false
D). (A)is false, but (R) is true

Answer: Both (A) and (R) are true and (R) is the correct explanation of (A)


   
1025). Which one of the following is correctly matched?
A). Astigmatism - Defect in the lens
B). Cataract - Convex lens
C). Hypermetropia - Cylindrical lens
D). Myopia - Concave lens

Answer: Myopia - Concave lens



1026). When a metal ring is heated, its inner diameter will
A). increase
B). decrease
C). show no change
D). vibrate

Answer: decrease


   
1027). When ice melts its volume will
A). decrease
B). increase
C). remain same
D). freeze

Answer: decrease


   
1028). An electric fan is switched on inside a class room. Then the air inside the room will
A). heat up
B). cool down
C). register no change in temperature
D). develop pressure

Answer: register no change in temperature


   
1029). A cark floating in water in a beaker when full, comes to centre due to
A). adhesive forces of water
B). viscosity
C). Bemoulli's principle
D). Archimedes principle

Answer: adhesive forces of water


   
1030). Rocket works on the principle of
A). law of conservation of momentum
B). law of conservation of energy
C). law of conservation of mass
D). law of gravitation

Answer: law of conservation of momentum