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

NCERT class-11 Physics Chapter 6 Work, Energy, and Power Summary: Questions And Answers Question1. The sign of work done by a force on a body is important to understand. State carefully if the following quantities are positive or negative:a. work done by a man in lifting a bucket out of a well by means of a … Read more

NCERT class-11 Physics Chapter 5 Laws of Motion Summary Questions And Answers Question1. Give the magnitude and direction of the net force acting ona. a drop of rain falling down with a constant speed,b. a cork of mass 10 g floating on water,c. a kite skillfully held stationary in the sky,d. a car moving with … Read more