*THE ANSWERS OF THE PHYSICS QUESTION*🔥🔥 1) Correct Answer: Option C Explanation General formular of Gas laws (P1V1) ÷ T1= (P2V2) ÷ T2 P1 = 800mmHg, V, = 76cm3, Tr = 273 + 27 = 300k P2 = 760mmHg, V2 = ? T2= 273 + 0 = 273 (800 × 76) ÷ 300 = (760 × V2) ÷ 273 V2 = (300 × 76 × 273) ÷ (300 × 760) = 72.8 cm3 The volume of gas as S.T.P = 72.8 cm3 2)Correct Answer: Option A Explanation Boyle‘s law stats that the volume of a given mass of a gas, at a constant temperature is inversely proportional to us pressure. Mathematically V ∝ l/p, v = k/p (where k is constant) K = VP Let k = k1 Then, if k = k, V and P = V1P1 V1P1 = V2P2 3)Correct Answer: Option C Explanation Ray – a beam of light or radiation 4)Correct Answer: Option B Explanation XL = WL = 2πFL (w = 2πf) XL = reactance inductor (S.I unit Ω) L = inductance (L) in Henry XL = 1Ω, f = 50/π, L = ? 1 = 2× π × 50/π × L 1 = 100L i.e. 100L = 1 L = 1/100 0.01H ∴ Inductance (L) of a inductor = 0.01H 5)Correct Answer: Option A Explanation Stroboscope is a scientific instrument used to make a wave appears stationary when used 6)Correct Answer: Option B Explanation In an inelastic collision, linear momentum is conserved and energy is decreased Momentum and kinetic energy are conserved in elastic collision 7)Correct Answer: Option B Explanation Note:The principle of floatation states that a floating body displaces its own weight of the fluid or which its float. For object to sink weight of the object (W) > upthrust of the fluid (v) i.e. w > u (i.e. weight of the body (or object) mass of the fluid) 8)Correct Answer: Option A Explanation Formula for general gas law V × 1/T × P N [(PV) ÷ T] = K is constant 9)Correct Answer: Option D Explanation The appearance of pool of water on road surfaces is called MIRAGE His observation show that light from the sun ray refracted through a layer of hot air(layer) which is closed to the ground, passes from a hot air layer to the cold layer 10)Correct Answer: Option B Explanation Sun are self luminous source Moon is a non – luminous Exposite.com.ng Team CARES💞