A. make pass through the transformers B. increase the power supply C. make it travel fast D. prevent overheating of…
A. be induced B. converge C. diverge D. remain constant Correct Answer: Option C - diverge Explanation Since the charged…
A. different hidden colours in the glass B. different speeds of the colour in the glass C. defects in the…
A. convex lens B. concave lens C. convex mirror D. concave mirror Correct Answer: Option B - concave lens Explanation…
A. 2.50 cm B. 6.67 cm C. 7.50 cm D. 7.63 cm Correct Answer: Option B = 6.67 cm Explanation…
A. 2 cm B. 3 cm C. 4 cm D. 5 cm Correct Answer: Option A = 2 cm Explanation…
A. retina B. iris C. cornea D. pupil Correct Answer: Option A - retina Explanation The retina is a light-sensitive…
A. diffraction of sound B. refraction of sound C. superposition D. reverberation Correct Answer: Option D - reverberation Explanation The…
A. the wavelength of sound becomes greater in the bottle B. sound cannot pass through the bottle C. sound needs…
A. 1.2 s B. 1.0 s C. 0.5 s D. 0.1 s Correct Answer: Option D = 0.1 s Explanation…