BALOCHISTAN MDCAT PAPER 2022 ( PART 15 ) 1. A man pushes a wall and fails to displace it. He does: Positive work Negative work No work at all Maximum work 2. The ratio of angular speed of a minutes hand to hours hand of the watch is? 12:1 1:8 1:12 6:1 3. Which of the following pairs has the same direction always? Force, displacement Force, momentum Force, velocity Force, acceleration 4. The third law of motion explains: The existence of two forces The existence of a force The effect of force The existence of a pair of forces in nature 5. Thermal equilibrium in environment occurs due to: Heat flow Heat absorption Heat generation Heat dissipation 6. A second pendulum starts Its oscillation from the extreme position. What is the ratio of it’s amplitude to the displacement after 7 second? 1:4 1:14 1:2 Infinity 7. Positron and electron annihilate into: X-rays One γ-ray photon Two γ-ray photons Alpha – rays 8. An electric motor is used to operate an elevator. The motor does 140,000 J of work In 70 s. What Is the output power of the motor? 9.8 megawatts 0.50 milliwatts 2.0 watts 2.0 kilowatts 9. The internal resistance of a battery is due to which of the following reasons? Static charges Electrolytes Ions moving charges Moving charges 10. A magnetic field Is produced by: Both moving and stationary charges Moving charges Only ions Stationary charges Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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Question no 7 are wrong.
The answer is nociceptors.
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