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IIT JEE Exam 2021 : : JEE Mains AITS 1 (SOLVED)

28 pages, 90 questions, 0 questions with responses, 0 total responses,

Aquaman- King of the Seven Seas
Iit Jee, India
XI,XII Science

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AITS 9 (Main) Physics PART (A) : PHYSICS SINGLE CORRECT ANSWER TYPE This section contains 20 multiple choice questions. Each question has 4 options (A), (B), (C) and (D) for its answer, out of which ONLY ONE option can be correct. Marking scheme: +4 for correct answer, 0 if not attempted and 1 in all other cases. 1. 1. A rod AB is shown in figure. End A of the rod is fixed on the ground. Block is moving with velocity 3 m/s towards right. The speed of end B of the rod when rod makes an angle of 600 with the ground is (A) 3 m/s (B) 2 m/s (C) 5 m/s (B) Let the length of rod is and co-ordinate of B is (x,y) v B = v i + v j = 3 i + v j x y (D) 2.5 m/s y x 2 + y 2 = 2 2xv x 2yv y 0 3 y vy 0 x 3 tan 600 v y 0 v y = -1m/s v B 3 i 1j |v B | 3 1 2m/s 2. A thin prism P1 with angle 4 0 and made from glass ( = 1.54) is combined with another prism P2 made of another glass of = 1.72 to produce dispersion without deviation. The angle of prism P2 is 2. (A) 53.30 (B) 4 0 (C) For no deviation ( 1 1) A1 ( 2 1) A2 (C) 30 (D) 2.6 0 40 (1.54 1) (1.72 1)A2 A2 3. 3. 4 0.54 30 0.72 A light emitting diode (LED) has a voltage drop of 2V across it and passes a current of 10mA. When it operates with a 6 V battery through a limiting resistor R, the value of R is (A) 40 (B) 4 (C) 200 (D) 400 (D) The potential drop across R is 4 V while current is 10 mA hence, 10 10 3 R 4 R 400 CENTERS : MUMBAI /DELHI /AKOLA /LUCKNOW /NASHIK /PUNE /NAGPUR /BOKARO /DUBAI # 1

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