Answers The photocell works on the principle of the The photocell works on the principle of the A. voltaic cell B. emision of electrons by incident radiation C. emision of protons by incident electrons D. photographic plate Correct Answer: Option B Explanation
Answers The main advantage of a departmental account is that its The main advantage of a departmental account is that its A. expenses are shared B. gross profit is… Read More
Answers Which of the following plant diseases is indicated when grains of cereals are covered with… Which of the following plant diseases is indicated when grains of cereals are covered with a mass of… Read More
Answers Diagrams A, B and C are illustrations of different types of teeth in humans. Diagram… Diagrams A, B and C are illustrations of different types of teeth in humans. Diagram D is a… Read More
Answers The chromatography separation of ink is based on the ability of the components to The chromatography separation of ink is based on the ability of the components to A. React with solvent… Read More
Answers If temperature t is directly proportional to heat h, and when t = 20oC, h… If temperature t is directly proportional to heat h, and when t = 20oC, h = 50 J,… Read More