QUESTIONS FOR SHORT ANSWER 1 A For most of the surfaces used in daily life, the friction coefficient is less than 1. Is it always necessary that the friction coefficient is less than 1? Answer: No Explanation: It is not always necessary for the friction coefficient to be less than 1. While many common surfaces …
HC Verma Physics Solutions Part I: Chapter 6 | Friction Read More »
QUESTIONS FOR SHORT ANSWER 1. The apparent weight of an object increases in an elevator while accelerating upward. A moongphaliwala sells his moongphali using a beam balance in an elevator. Will he gain more if the elevator is accelerating up ? Answer: No Explanation: The beam balance works on the principle of comparison of masses. …
H C Verma | Concept of Physics | Part 1 | Chapter 5 | Newton’s Laws of Motion Read More »
QUESTIONS FOR SHORT ANSWER 1. A body of mass \( m \) is placed on a table. The earth is pulling the body with a force \( mg \). Taking this force to be the action what is the reaction ? Answer: The reaction is the gravitational force with which the body pulls the earth. …
Concept of Physics | H C Verma Part 1 Solution | Chapter 04 : The Force Read More »
QUESTIONS FOR SHORT ANSWER 1. Is a vector necessarily changed if it is rotated through an angle ? Yes. Explanation: A vector depends on magnitude and direction. Rotation changes direction, so the vector changes. Exceptions: zero vector or rotation by multiples of \(360^\circ\). 2. Is it possible to add two vectors of unequal magnitudes and …
H C Verma Solution Part I Chapter 2 | Physics and Mathematics Read More »
QUESTIONS FOR SHORT ANSWER 1. The metre is defined as the distance travelled by light in 1/299,792,458 second. Why didn’t people choose some easier number such as 1/300,000,000 second ? Why not 1 second ? To maintain the historical length of the metre and ensure continuity. Explanation: The value 299,792,458 was selected so that the …
H C Verma Concept of Physics Solution | Chapter 1: Introduction To Physics Read More »
Exercise Questions 1. A man has to go 50m due north, 40m due east and 20m due south to reach a field. (a)What distance he has to walk to reach the field? (b)What is his displacement from his house to the field? Solution: Step 1: Identify the Path Segments The motion consists of three distinct …
HC Verma Physics Solutions Part I: Chapter 3 Kinematics Read More »
Exercise Questions 1. A man has to go 50m due north, 40m due east and 20m due south to reach a field. (a)What distance he has to walk to reach the field? (b)What is his displacement from his house to the field? Solution: Step 1: Identify the Path Segments The motion consists of three distinct …
Chapter 3. Current Electricity
1. The storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.4Ω, what is the maximum current that can be drawn from the battery? (A) 30 A (B) 40 A (C) 20 A (D) 50 A Answer: (A) 30 A Explanation: The maximum current is …