0% Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 12345678910 Physics Class 11 This Quiz Contains a Set of 10 Questions. Passing cut-off is 60%. To Start the Quiz... Click on the Start Button. All the Best. 1 / 10 The frequency of an open organ pipe is ν. If half part of the organ pipe is dipped into water then its frequency is: ν ν/2 ν/4 0 2 / 10 A cube has a side of length 1.2 x 10-2 m. Its volume is: 1.7 x 10-6 m3 1.73 x 10-6 m3 1.0 x 10-6 m3 1.732 x 10-6 m3 3 / 10 At the uppermost of a projectile, the velocity and acceleration are at an angle of: 0° 45° 90° 180° 4 / 10 The efficiency of engine is η1 at temperatures T1 = 200°C and T2 = 0°C and η2 at temperatures T1= 0°C and T2 = -200 K. Find the ratio of η1/η2: 1.00 0.721 0.577 0.34 5 / 10 Assertion (A): The shape and size of a rigid body remain unaffected under the effect of external forces. Reason (R): The distance between two particles remains constant in a rigid body. If both assertion and reason are true and reason is the correct explanation of assertion. If both assertion and reason are true but reason is not correct explanation of assertion. If assertion is true, but reason is false. If both assertion and reason are false. 6 / 10 If one moves from the surface of the earth to the moon, what will be the effect on its weight? Weight of the person decreases continuously with height from the surface of the earth. Weight of the person increases with height from the surface of earth. Weight of a person first decreases with height and then increases with height from surface of earth. Weight of person first increases with height and then decreases with height from the surface of earth. 7 / 10 A rigid bar of mass M is supported symmetrically by three wires each of length L. The wires at each end are made of copper and the middle one is made of iron. The ratio of their diameters, if each is to have the same tension, is equal to: YcopperYiron YironYcopper Y2ironY2copper YironYcopper 8 / 10 A gas is found to obey the law P2 V = constant. The initial temperature and volume are To and Vo. If the gas expands to a volume 3Vo. Its final temperature becomes: T03 T03 3T0 T03 9 / 10 A position-dependent force, F = 7 — 2x + 3x2 N acts on a small body of mass 2 kg and displaces it from x = 0 to x = 5 m. The work done in joule is 135 270 35 70 10 / 10 One mole of an ideal diatomic gas undergoes a transition from A to B along a path AB as shown in the figure. The change in internal energy of the gas during the transition is (if γ = 3/5): -20 kJ 20 J -12 kJ 20 kJ Your score is 0% Restart quiz
