GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 135

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 135

1341). GSLV stands for
A). Geological Satellite Launch Vehicle
B). Geo-Synchronous Satellite Launch Vehicle
C). Global satellite Launch Vehicle
D). Generalized Satellite Launch Vehicle

Answer: Geo-Synchronous Satellite Launch Vehicle


   
1342). Refractive index of a diamond is 2.42. Its meaning with respect to velocity of light is
I. Velocity of light in diamond is more than the velocity of light in air.
ll. Velocity of light in diamond is less than the velocity of light in air
Ill. Velocity of light in diamond and air is one and the same
IV. Velocity of light in air is more than the velocity of light in diamond
A). land IV is correct
B). III alone is correct
C). II and IV is correct
D). I alone is correct

Answer: II and IV is correct


   
1343). Consider the following statements with reference to the surface tension.
i) Falling rain drops are spherical due to surface tension
ii) Oil has greater surface tension than water
iii) To prevent breeding of mosquitoes, oil is sprayed on the surface of water in pools.
Which of the statements given above is/are correct?
A). (i) and (iii) only
B). (ii) only
C). (i), (ii) and (iii).only
D). (i) only

Answer: (i) and (iii) only


   
1344). The transmitting device that blocks signals between a cell phone and the base station is a
A). Cell phone diverter
B). Cell phone shield
C). Cell phone jammer
D). Cell phone masks

Answer: Cell phone jammer


   
1345). Consider the following statements:
Assertion (A): Force cannot be added to pressure
Reason (R): Their dimensions are different
Now select your answer according to the codes given below:
A). (A) is correct, but (R) is wrong
B). (A) is wrong, but (R) is correct
C). Both (A) and (R) are wrong
D). (A) and (R) are correct and (R) is the correct explanation of (A)

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



1346). Sky appears blue due to the phenomena of
A). interference of light rays
B). dispersion of light rays
C). polarisation of light rays
D). scattering of light by air molecules

Answer: scattering of light by air molecules


   
1347). A carnot engine works between the temperatures 30 K and 300 K. What is its efficiency?
A). 0.5
B). 0.47
C). 0.9
D). 0.1

Answer: 0.9


   
1348). Match List - I with List - II correctly and select the correct choice:
List - I                            List - II
a) Diode                   1) amplifier
b) Transistor             2) display
c) Solar cell              3) rectifier
d) LED                     4) electricity

Codes:
a b c d
A). 4 3 1 2
B). 3 1 4 2
C). 2 4 1 3
D). 4 3 2 1

Answer: 3 1 4 2


   
1349). A magnet is allowed to fall through a metal ring, during the fall
A). its acceleration is equal to 'g'
B). its acceleration is greater than 'g'
C). its acceleration is less than 'g'
D). its acceleration is equal to the product of 'g' and the radius of the ring

Answer: its acceleration is less than 'g'


   
1350). The Boolean expression of the output Y in terms of the inputs A and B for the circuit shown in the following figure is:

A). Y = (A+B¯)(Ā+B)

B). Y = (Ā+B¯).(A+B)
C). Y = AB¯+ ĀB
D). Y = AB¯+AB

Answer: Y = AB¯+ ĀB