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NCERT Class 12 Physics Chapter 2 Electrostatic Potential And Capacitance Summary: Questions And Answers: NCERT Class 12 Physics Chapter 2 Electrostatic Potential And Capacitance Question 2.1: Two charges 5 × 10−8 C and −3 × 10−8 C are located 16 cm apart. At what point(s) on the line joining the two charges is the electric potential zero? Take the … Read more
NCERT class-11 Physics Chapter 15 Waves Summary: Questions And Answers: NCERT class-11 Physics Chapter 15 Waves Question1. A string of mass 2.50 kg is under a tension of 200 N. The length of the stretched string is 20.0 m. If the transverse jerk is struck at one end of the string, how long does the … Read more
NCERT class-11 Physics Chapter 14 Oscillations Summary: Questions And Answers: NCERT class-11 Physics Chapter 14 Oscillations Question 1. Which of the following examples represent periodic motion?a. A swimmer completing one (return) trip from one bank of a river to the other and back.b. A freely suspended bar magnet displaced from its N-S direction and released.c. A … Read more
NCERT class-11 Physics Chapter 13 Kinetic Theory Summary: Questions And Answers: NCERT class-11 Physics Chapter 13 Kinetic Theory Question 1. Estimate the fraction of molecular volume to the actual volume occupied by oxygen gas at STP. Take the diameter of an oxygen molecule to be 3Å. Solution :Diameter of an oxygen molecule, d = 3ÅRadius, r = … Read more
NCERT class-11 Physics Chapter 12 Thermodynamics Summary: Questions And Answers: NCERT Class-11 Physics Chapter 12 Thermodynamics Question 1. A geyser heats water flowing at the rate of 3.0 litres per minute from 27 °C to 77 °C. If the geyser operates on a gas burner, what is the rate of consumption of the fuel if its … Read more
NCERT class-11 Physics Chapter 11 Thermal Properties of Matter Summary: Here’s the summary of NCERT class-11 Physics Chapter 11 “Thermal Properties of Matter” along with relevant formulas: Questions And Answers: NCERT class-11 Physics Chapter 11 Thermal Properties of Matter Question 1. The triple points of neon and carbon dioxide are 24.57 K and 216.55 K respectively. Express these temperatures … Read more
NCERT class-11 Physics Chapter 10 Mechanical Properties of Fluids Summary: Questions And Answers: Question1. Explain whya. The blood pressure in humans is greater at the feet than at the brainb. Atmospheric pressure at a height of about 6 km decreases to nearly half of its value at the sea level, though the height of the … Read more
NCERT class-11 Physics Chapter 9 Mechanical Properties of Solid Summary: Questions And Answers: Question 1. A steel wire of length 4.7 m and cross-sectional area 3.0 × 10–5 m2 stretches by the same amount as a copper wire of length 3.5 m and cross-sectional area of 4.0 × 10–5 m2 under a given load. What is the ratio of the Young’s … Read more
NCERT class-11 Physics Chapter 8 Gravitation Summary: Questions And Answers: Question1. Answer the following:a. You can shield a charge from electrical forces by putting it inside a hollow conductor. Can you shield a body from the gravitational influence of nearby matter by putting it inside a hollow sphere or by some other means?b. An astronaut … Read more
NCERT class-11 Physics Chapter 7 System of Particles and Rotational Motion Summary: Questions And Answers: Question 1. Give the location of the centre of mass of a (i) sphere, (ii) cylinder, (iii) ring, and (iv) cube, each of uniform mass density. Does the centre of mass of a body necessarily lie inside the body? Solution :In all … Read more