GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 121

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 121

1201). Hexadecimal is the number system with base
A). 10
B). 16
C). 8
D). 2

Answer: 16


   
1202). The radius of an atom is
A). 10^−12
B). 10^−15
C). 10^−16
D). 10^−10

Answer: 10^−10



   
1203). The rays similar to X-rays but of smaller wavelength that are given off by radioactive substances are
A). α -rays
B). β -rays
C). γ -rays
D). Cosmic rays

Answer: γ -rays

   
1204). In which one of the following place is electricity generated from hydel bower?
A). Neyveli
B). Ennore
C). Tuticorin
D). Mettur

Answer: Mettur


   
1205). In an LCR circuit which will give a phase lead current than voltage?
A). L (inductance)
B). C (capacitance)
C). R (resistance)
D). All together

Answer: C (capacitance)



1206). A drop of water is spherical due to surface tension
A). surface tension
B). low pressure
C). air resistance
D). viscosity of water

Answer: surface tension


   
1207). The frequency of ultrasound wave
A). above 20 KHz
B). above 20,000 KHz
C). below 20 KHz
D). below 2 KHz

Answer: above 20 KHz

   
1208). Consider the following statements :
Assertion (A) : A rocket that is sent to space has to given an extra force at certain distance from earth. 

Reason (R) : At a certain distance from earth, earth is encircled by a ring of vacuum.

Now select the correct answer according to the coding scheme given below :
A). (A) and (R) are correct, but (R) is not the correct explanation of (A)
B). (A) and (R) are correct and (R) is the correct explanation of (A)
C). (A) is correct, but (R) is not correct
D). (A) is not correct, but (R) is correct

Answer: (A) and (R) are correct, but (R) is not the correct explanation of (A)


   
1209). Match list-I with list-II correctly and select your answer using the codes given below :
List-I                                                                               List-II
a) Relationship between electricity and magnetism      l) Neils Bohr
b) Velocity of light                                                   2) Ampere
c) Radio waves                                                        3) Foucault
d) Structure of atom                                                4) Hertz

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

Answer: 2 3 4 1


   
1210). Fuel cells are used
A). aircraft
B). electric locomotives
C). space crafts
D). submarines

Answer: space crafts