Chapter 15: Waves
NCERT Solutions for Class 11 Physics Chapter 15 Waves Question 15. 1. 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…
Chapter 14: Oscillations
NCERT Solutions for Class 11 Physics Chapter 14 Oscillations Question 14. 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)…
Chapter 13: Kinetic Theory
NCERT Solutions for Class 11 Physics Chapter 13 Kinetic Theory Question 13. 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…
Chapter 12: Thermodynamics
NCERT Solutions for Class 11 Physics Chapter 12 Thermodynamics Question 12. 1 A geyser heats water flowing at the rate of 3.0 litres per minute from 2 7°C to 77°C. If the geyser operates on a gas…
Chapter 11: Thermal Properties of matter
NCERT Solutions for Class 11 Physics Chapter 11 Thermal Properties of matter Question 11. 1. The triple points of neon and carbon dioxide are 24.57 K and 216.55 K respectively. Express these temperatures on the Celsius and…
Chapter 10: Mechanical Properties of Fluids
NCERT Solutions for Class 11 Physics Chapter 10 Mechanical Properties of Fluids Question 10. 1. Explain why(a) The blood pressure in humans is greater at the feet than at the brain.(b) Atmospheric pressure at a height of…
Chapter 9: Mechanical Properties of Solids
NCERT Solutions for Class 11 Physics Chapter 9 Mechanical Properties of Solids Question 9. 1. A steel wire of length 4.7 m and cross-sectional area 3.0 x 10-5 m2 stretches by the same amount as a copper wire of…
Chapter 8: Gravitation
NCERT Solutions for Class 11 Physics Chapter 8 Gravitation Question 8. 1. 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…
Chapter 7: System of Particles and Rotational Motion
Question 7. 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…
Chapter 6: Work Energy and Power
Question 6. 1. 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…
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