NCERT Solutions for Class 11 Physics Chapter 15 Waves QUESTIONS FROM TEXTBOOK 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 jerk is struck at one end of the string, how long does the disturbance…
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NCERT Solutions for Class 11 Physics Chapter 14 Oscillations QUESTIONS FROM TEXTBOOK 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) A freely suspended bar magnet displaced from its N-S direction and released.…
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NCERT Solutions for Class 11 Physics Chapter 13 Kinetic Theory QUESTIONS FROM TEXTBOOK 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 be 3 A. Answer: Diameter of an oxygen molecule, d = 3 A = 3…
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NCERT Solutions for Class 11 Physics Chapter 12 Thermodynamics Topics and Subtopics in NCERT Solutions for Class 11 Physics Chapter 12 Thermodynamics: QUESTIONS FROM TEXTBOOK 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 burner, what…
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NCERT Solutions for Class 11 Physics Chapter 11 Thermal Properties of matter Chapter 11 Thermal Properties of matter: QUESTIONS FROM TEXTBOOK 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 Fahrenheit scales. Answer: The relation between kelvin scale and…
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NCERT Solutions for Class 11 Physics Chapter 10 Mechanical Properties of Fluids Topics and Subtopics in NCERT Solutions for Class 11 Physics Chapter 10 Mechanical Properties Of Fluids: QUESTIONS FROM TEXTBOOK Question 10. 1. Explain why (a) The blood pressure in humans is greater at the feet than at the brain. (b) Atmospheric pressure at…
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NCERT Solutions for Class 11 Physics Chapter 9 Mechanical Properties of Solids QUESTIONS FROM TEXTBOOK 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 length 3.5 m and cross-sectional area of 4.0 x 10-5 m2 under a given…
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NCERT Solutions for Class 11 Physics Chapter 8 Gravitation QUESTIONS FROM TEXTBOOK 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 gravitational influence of nearby matter by putting it inside a hollow sphere or…
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NCERT Solutions for Class 11 Physics Chapter 7 System of Particles and Rotational Motion QUESTIONS FROM TEXTBOOK 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…
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NCERT Solutions for Class 11 Physics Chapter 6 Work Energy and Power QUESTIONS FROM TEXTBOOK 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 out…
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