NEET Physics: Questions 419 - 423 of 2099
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Question number: 419
A fire man has to carry an injured person of mass 30 kg from the top of a building with the help of the rope which can withstand a load of 150 kg. The acceleration of the
Fireman if his mass is 50 kg, will be
17.97 m/s 2
9.8 m/s 2
8.575 m/s 2
2.63 m/s 2
Question number: 420
Direction of electric field at a point signifies direction of force experienced by a point charge placed at that point.
Electric field is a vector quantity.
|a.||Ꭺ is false but Ꭱ is true|
|b.||Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ|
|c.||Both Ꭺ and Ꭱ are false|
|d.||Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ|
Question number: 421
Question number: 422
A uniform electric field pointing in positive x - direction exists in a region. Let A be the origin, B be the point on the x - axis at x =+1 cm and C be the point on the y - axis at y =+1 cm. Then the potentials at the points A, B and C satisfy
V A < V B
V A > V C
V A < V C
V A > V B