FULL LENGTH PAPER Subject: Physics Campus: _______________ Roll No: Answer Sheet No: _______________ Sig. of Candidate: _______________ Sig. of Invigilator: _______________ SECTION − A Time Allowed: 20 minutes Marks: 12 NOTE: Section-A is compulsory. All parts of this section are to be answered on the question paper itself. It should be completed in the first 20 minutes and handed over to the Centre Superintendent. Deleting/ overwriting is not allowed. Do not use lead pencil. Q.1 Encircle the correct option i.e., A/B/C/D. All parts carry equal marks. i. Study of motion of objects, its causes and effects is called: A. Geophysics B. Astrophysics C. Mechanics D. Nuclear physics ii. The slope of distance time graph shows: A. Velocity B. Acceleration C. Distance D. Speed iii. Acceleration produced by a 20 N force in a mass of 8 kg is: A. 3.2 ms−2 B. 2.5 ms−2 C. 2.3 ms−2 D. 3.5 ms−2 iv. Which is unit less quantity? A. Inertia B. Force C. Mass D. None of these v. A string is stretched by two equal and opposite forces of 10 N each. The tension in the string is: A. 5 N B. Zero C. 10 N D. 20 N vi. Which of the following is the SI unit of torque? A. Nm−1 B. Nm−2 C. Nm2 D. Nm vii. Speed of the satellite revolving very closely to earth is nearly: A. 10 kms−1 B. 5 kms−1 C. 8 kms−1 D. 16 kms−1
FULL LENGTH PAPER DO NOT WRITE ANYTHING HERE viii. The work done will be zero when the angle between the force and distance is: A. 45o B. 60o C. 180o D. 90o ix. According to Hooke’s law: A. Stress/strain = constant B. Stress × strain = constant C. Strain/ stress = constant D. Stress = strain x. Density of lead is _________ kgm−3 . A. 8900 B. 13600 C. 11200 D. 21500 xi. Water freezes at: A. 0 oF B. −273 K C. 0 K D. 32 oF xii. In solids heat is transferred by: A. Conduction B. Radiation C. Convection D. Absorption For Examiner’s use only: Total Marks: 12 Marks Obtained: