A. cathode ray B. anode ray C. molecular ray D. gamma-ray Correct Answer: Option A - cathode ray Explanation The…
A. ions only B. electrons and ions C. electrons and holes D. electrons only Correct Answer: Option B - electrons…
A. V B. III C. I D. II Correct Answer: Option A - V Explanation Silicon is a tetravalent (4…
A. increases then decrease B. increases C. decreases D. remains constant Correct Answer: Option B - increases Explanation When impurities…
A. 250days B. 150days C. 300days D. 200days Correct Answer: Option A - 250days Explanation Since 1/32, is the fraction…
A. 180° B. 90° C. 60° D. 30° Correct Answer: Option B - 90° Explanation In a purely capacity circuit,…
A. 8 s B. 4 s C. 16 s D. 10 s Correct Answer: Option B - 4 s Explanation…
A. (R/r)² B. r/R C. (r/R)² D. R/r Correct Answer: Option D - R/r Explanation In a wheel and axle…
A. 3 cm B. 4 cm C. 1 cm D. 2 cm Correct Answer: Option C - 1 cm Explanation…
A. momentum and power B. velocity and distance C. displacement and torque D. acceleration and speed Correct Answer: Option C…