I. Wavelength II. Medium of propagation III. Wave velocity IV. Frequency V. Energy A. I, II and V B. I…
A. conduction only B. convention only C. convection and conduction D. radiation only Correct Answer: Option D - radiation only
A. 0.50m³ B. 0.45m³ C. 0.05m³ D. 4.50m³ Correct Answer: Option C - 0.05m³ Explanation Vol. of ice = M/?D…
A. increase in the volume of water B. contraction of the bottle C. expansion of the bottle D. decrease in…
A. u/f + f B. u/v +1 C. v/f + 1 D. v/f - 1 Correct Answer: Option D = v/f -…
A. timbre B. frequency C. harmonics D. quality Correct Answer: Option B = frequency
A. Convex lens B. Binoculars C. Concave lens D. Plane glasses Correct Answer: Option C - Concave lens Explanation A…
A. 35° B. 55° C. 70° D. 65° Correct Answer: Option B = 55° Explanation 35° =35° = 70° 180…
A. They diverge as they travel B. they intersect C. They converge as they travel D. They meet at infinity.…
A. Parabolic mirrors B. Plane mirrors C. Cylindrical mirrors D. Spherical mirrors Correct Answer: Option A - Parabolic mirrors