(A) Mechanical
(B) Electrical
(C) Thermal
(D) Chemical
A doctor counts 72 heartbeats in 1 minute. Its time period is?
(A) 0.83 second
(B) 1.2 second
(C) 60 second
(D) 72 second
Example of simple harmonic motion?
(A) The motion of a simple pendulum
(B) The motion of earth on its axis
(C) The motion of a ceiling fan
(D) Bouncing ball on the floor
Process by which electrons are emitted by hot metal surface is known as?
(A) Boiling
(B) Evaporation
(C) Conduction
(D) Thermionic emission
Which device decrease the alternating voltage?
(A) Step down transformer
(B) Step up transformer
(C) Generator
(D) Motor
Identify true statement regarding magnetic poles?
(A) A single magnetic pole does not exist
(B) Unlike poles repels each other
(C) Like poles attract each other
(D) Magnetic poles does not effect each other
Due to the widespread response to the upcoming privacy policy update on WhatsApp, Telegram now has more than ___ active users till 12 January 2021.
(A) 100 Million
(B) 450 Million
(C) 500 Million
(D) 550 Million
Which former Pakistani Pacer appointed bowling coach for Quetta Gladiator team?
(A) Aqib Javed
(B) Rana Naveed
(C) Azhar Mehmood
(D) Umar Gul