GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 052

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 052

511). Artificial satellites are used for
A). TV transmission
B). Detecting minerals
C). Space research
D). All the three

Answer: All the three

   
512). Sound travels maximum speed
A). vacuum
B). air
C). water
D). steel

Answer: steel


   
513). The minimum lengths of a plane mirror in which a person can see himself in full length should be
A). equal to the person's height
B). slightly more than his height
C). nearly half of his height
D). nearly one fourth of his height

Answer: nearly half of his height

   
514). Match list I with list II and select correct answer using the codes given below :
List I                                                List II
a) Bohr                                       l) Neutron
b) Einstein                                 2) Model of the hydrogen atom
c) Chadwick                               3) Matter waves
d) De Broglie                             4) Photoelectric effect

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

Answer: 2 4 1 3


   
515). If you walk towards a plane mirror at a speed of 10 cm/s at what speed does your image approach you?
A). 5 cm/s
B). 101cm/s
C). 20 cm/s
D). information inadequate

Answer: 101cm/s


 

516). The normal temperature of human body on the kelvin scale is
A). 280
B). 290
C). 310
D). 340

Answer: 310

   
517). Consider the following statements :
Assertion (A) : Heavy water (D20) could speed up the eradication of polio & other viral diseases. 

Reason (R) : It could help by protecting polio vaccine from the effects of tropical heat since it helps vaccines to keep cool.
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: (A) is false, but (R) is true


   
518). Consider the following statements:
Assertion (A) : The relay satellite transmits the TV programme continuously from one part of the world to another. 

Reason (R) : Its period is less than the period of rotation of the earth.
Select the answer from coding scheme given below:
A). (A) is false, but (R) is true
B). Both (A)'and (R) are true, but (R) is not the correct explanation of (A)
C). Both (A)'and (R) are false.
D). (A) is true, but (R) is false

Answer: (A) is true, but (R) is false


   
519). Consider the following-statements:
Assertion (A) : A man inside an artificial satellite feels weight-lessness. 

Reason (R) :The force of attraction due to the earth is equal to the centripetal force.
Select the answer from coding scheme given below:
A). (A) is true, but (R) is false
B). (A) is false, but (R) is true
C). Both (A) and (R) are true and (R) is the correct explanation of (A)
D). Both (A) and (R) are true but (R) is not the correct explanation of (A)

Answer: (A) is true, but (R) is false


   
520). Consider the following statements :
Assertion (A) : In a pressure cooker the cooking is done fastes. 

Reason (R) : More steam is available to cook the food at 100°C
Select the answer from coding scheme given below :
A). (A) is wrong, but (R) is correct
B). (A) is correct, but (R) is wrong
C). Both (A) and (R) are true and (R) is the correct explanation of (A)
D). Both (A) and (R) are true but (R) is not the correct explanation of (A)

Answer: (A) is correct, but (R) is wrong