(A) hydrogen

(B) diamond

(C) liquid nitrogen

(D)  mercury

(A) speed of light

(B) intensity of sound

(C) intensity of heat

(D) none of these

(A) first, rise and then fall

(B) fall

(C) remain the same

(D) rise

(A) 98k

(B) 198k

(C) 273k

(D)  373k

(A) above 120 db

(B) above 80 db

(C) above 50 db

(D) above 30 db

(A) the volume of the body

(B) the density of the body

(C) the weight of the body

(D) the mass of the body

(A) momentum

(B) presssure

(C) energy

(D) work

(A) Twinkling effect of stars

(B) Mirages

(C) Lateral inversion

(D) Bending of light while passing through a medium

(A) near magnet

(B) near iron

(C)away from electric wiring

(D) all of the above

(A) angle

(B) strain

(C) specific gravity

(D) all of these