GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 130

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 130

1291). The net resistance of a voltmeter should be large to ensure that
A). it does not get overheated
B). it does not draw excessive current
C). it can measure large potential differences
D). it does not change the potential difference to be measured

Answer: it can measure large potential differences


   
1292). Soft iron is an ideal material for electromagnets because it
A). exhibits maximum flux density
B). requires small magnetizing field
C). exhibits low hysteresis loop
D). all of theses

Answer: all of theses


   
1293). Match List l correctly with List ll and select your answer using the codes given below:
List l                                     List ll
a) Convex lens               1) Dispersion
b) Concave lens             2) Long sight
c) Prism                        3) mama image
d) Mirror                       4) Short sight

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

Answer: 2 4 1 3


   
1294). Consider the following statements:
Assertion (A) : Metals and glass are isotropic in nature
Reason (R) : They have the same properties in all directions

Now select your answer according to the coding scheme given below:
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
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)

   
1295). The term 'Boson' in Higgs boson has an Indian origin because .......
A). Of the financial support of Indian Government towards research
B). Higgs particle was found theoretically by Indian Physicist S.N. Bose
C). It was the name given to the particles obeying Bose Einstein statistics
D). It was coined by Bose

Answer: Higgs particle was found theoretically by Indian Physicist S.N. Bose



1296). The source of solar energy is .........
A). fission
B). radiation
C). fusion
D). conduction

Answer: fusion


   
1297). A' is the assertion and 'R' is the reason. Examine these two statements carefully and select the answer using the code given below:
A: We are able to hear the sound behind the walls or obstacles.
R: When the wavelength of a wave is comparable or less than that of an obstacle, diffraction happens.
A). Both (A) and (R) are individually true and (R) is the correct explanation of (A)
B). Both (A) and (R) are individually true, but (R) is not a 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 individually true and (R) is the correct explanation of (A)


   
1298). Consider, the following statements and select your answer.
Assertion (A): Electron microscopes can give better resolution than optical microscopes. 

Reason (R): A high energy particle has a short de Broglie wavelength and so can probe the small scale interior structure of other particles.
A). Both (A) and (R) are true and (R) is the correct explanation of (A)
B). Both (A) and (R) are true and (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)


   
1299). Match the following:
List l                                                                                      List ll
a) Moment of linear momentum                                                1) Buoyancy
b) Ability of free surface of a liquid to minimize its surface area       2) Potential
c) Work done per unit charge                                              3) Surface tension
d) Upward force experienced by a body when wholly or partially immersed in a liquid                                                     4) Angular momentum

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

Answer: 4 3 2 1