RRB GROUP D Physics Quiz - 31

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Question 1:

Small oil films on water show magical colors. The phenomenon occurs due to-

Question 2:

Heat flows from a hot body to a cold body. The property of the system used to describe this natural direction quantitatively is called-

Question 3:

Which of the following lens is used to correct Presbyopia?

Question 4:

Which of the following is the essential characteristic for maximum range of a projectile?

Question 5:

Hygroscopic objects are those which instantly absorb -