(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

A) Diamagnetic materials

B) Non-magnetic materials

C) Paramagnetic materials

D) None of the others

(A) be traveling at a speed that is faster than perceived

(B) be traveling at a speed that is slower than perceived

(C) Both A & B

(D) None of the above

A) the retina of the eye moves forward

B) the retina of the eye moves backward

C) the iris is unable to dilate the pupil immediately to be able to see things

D) the eye has no power of accommodation

(A) zero

(B) infinite

(C) 1 Ohm

(D) 1/2 Ohm