NEET Physics: Questions 336 - 339 of 2099

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Question number: 336

» Communication System » Sky and Space Wave Propagation

MCQ▾

Question

Two full turns of the circular scale of a screw gauge cover a distance of 1mm on its main scale. The total number of divisions on the circular scale is 50. Further, it is found

that the screw gauge has a zero error of - 0.03 mm. While measuring the diameter of a thin wire, a student notes the main scale reading of 3 mm and the number of circular

scale divisions in line with the main scale as 35. The I diameter of the wire is

Choices

Choice (4) Response
a.

3.32 mm

b.

3.67 mm

c.

3.73 mm

d.

3.38 mm

Question number: 337

» Laws of Motion » Force and Inertia

MCQ▾

Question

A swimmer can swim in still water at a rate 4 km/h. If he swims in a river flowing at 3 km/h and keeps his direction (w. r. t. water) perpendicular to the current. Find his velocity w. r. t. the ground.

Choices

Choice (4) Response
a.

11.40 km/hr

b.

15.05 km/hr

c.

30.20 km/hr

d.

17 km/hr

Question number: 338

» Rotational Motion » Torque

MCQ▾

Question

A torque of 30 N-m is applied on a 5 kg wheel whose moment of inertia is 2kg-m 2 for 10 sec. The angle covers by the wheel in 10 sec will be

Choices

Choice (4) Response
a.

6000 rad

b.

750 rad

c.

1500 rad

d.

3000 rad

Question number: 339

» Electrostatics » Electric Potential

MCQ▾

Question

Point charge q 1 = 2 μ C and q 2 =-1 μ C are kept at points x = 0 and x = 6 respectively. Total electrical potential will be zero at points,

Choices

Choice (4) Response
a.

x = 1 and x = 5

b.

x =-2 and x = 2

c.

x = 2 and x = 9

d.

x = 4 and x = 12

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