A. x-rays are more penetrating than gamma rays B. x-rays are electromagnetic radiations while gamma rays are negatively charged radiation…
A. 0.1μF B. 0.3μF C. 1.0μF D. 0.5μF Correct Answer: Option A - 0.1μF Explanation 1/C = 1/0.3 + 1/0.5…
A. the appliances are maintained at a lower p.d than the earth B. both the a.c and d.c sources can…
A. 1.0 x 1020 B. 1.0 x 10-18 C. 1.0 x 10-17 D. 1.0 x 1017 Correct Answer: Option D…
A. 9.6J B. 2.4J C. 12.0J D. 7.2J Correct Answer: Option B - 2.4J Explanation Energy stored = Ivt =…
A. electrophorus B. capacitor C. proof-plane D. electroscope Correct Answer: Option A - electrophorus
A. Paraffin B. Sugar solution C. Grape fruit D. Alcohol Correct Answer: Option C - Grape fruit Explanation It has…
A. 9.0 x 10-3J B. 9.0 x 10-2J C. 1.4 x 10-2J D. 1.8 x 10-3J Correct Answer: Option B…
A. excitation of gas molecules B. conduction of solar energy C. refraction of light by gas molecules D. thermal agitation…
A. have a very long-reaching wavelength B. have extremely short wavelength C. are invisible D. are very fast Correct Answer:…