NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 201 - 205 of 2320

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Passage

Velocity at a general point P (x, y) for a horizontal projectile motion is given by

V = =

The image is velocity graph.

The Image is Velocity Graph

α is angle made by v with horizontal in clockwise direction Trajectory equation for a horizontal projectile motion is given by x = v x t = ut

y =- ( ) gt 2

Picture display is velocity graph.

Picture Display is Velocity Graph

Eliminating t, We get y =-

Question number: 201 (1 of 3 Based on Passage) Show Passage

» Kinematics » Velocity-Time Graphs

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MCQ▾

Question

A ball rolls off top of a stair way with a horizontal velocity u m/s. If the steps are h m high and b meters wide, the ball will just hit the edge of nth step if n equals to

Choices

Choice (4)Response

a.

b.

c.

d.

Both b. and c. are correct

Question number: 202 (2 of 3 Based on Passage) Show Passage

» Kinematics » Average Speed and Instantaneous Velocity

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Question

An aeroplane is in a level flying at an speed of 144 km/hr at an altitude of 1000 m. How far horizontally from a given target should a bomb be released from it to hit the target?

Choices

Choice (4)Response

a.

371.34 m

b.

571.43 m

c.

671.43 m

d.

471.34 m

Question number: 203 (3 of 3 Based on Passage) Show Passage

» Kinematics » Average Speed and Instantaneous Velocity

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Question

An aeroplane is flying horizontally with a velocity of 720 km/h at an altitude of 490 m. When it is just vertically above the target a bomb is dropped from it. How far horizontally it missed the target?

Choices

Choice (4)Response

a.

100 m

b.

1000 m

c.

200 m

d.

2000 m

Question number: 204

» Kinematics » Uniform Circular Motion

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MCQ▾

Question

A particle completes 1.5 revolutions in a circular path of radius 2 cm. The angular displacement of the particle will be - (in radian)

Choices

Choice (4)Response

a.

2 π

b.

3 π

c.

π

d.

6 π

Question number: 205

» Kinematics » Motion in a Plane

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MCQ▾

Question

When the angle of elevation of a gun are 60° and 30° respectively, the height it shoots are h1 and h2 respectively, hj/h2 equal to –

Choices

Choice (4)Response

a.

3/1

b.

1/2

c.

2/1

d.

1/3

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