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Question 271

AP Police Constable 2023• Full Test

The distance between two stations A and B is 240 km. It takes 2 hours for the two cars L and W to cross each other if they start respectively from A and B at the same time towards each other. Further, it takes 8 hours for L to overtake W if they both start at the same time from A and B in the same direction. Then the speed of the car L (in kmph) is

  1. AOption (a)

    45

  2. BOption (b)

    50

  3. COption (c)

    75

  4. DOption (d)

    80

View answer & explanation

Correct answer

Answer: (a)A.

45

Explanation not yet available.

Question 272

AP Police Constable 2023• Full Test

An employee will be late by 12 minutes to his office if he rides his bike at a speed of 40 kmph and he will be on time to his office if he rides his bike at a speed of 50 kmph. Then the distance (in km) of his office from his house is

  1. AOption (a)

    80

  2. BOption (b)

    60

  3. COption (c)

    20

  4. DOption (d)

    40

View answer & explanation

Correct answer

Answer: (a)A.

80

Explanation not yet available.

Question 273

AP Police Constable 2023• Full Test

Directions

In the following question, a statement is given followed by two conclusions numbered I and II. You have to decide which of the conclusion(s) follow(s) the statement. Give your answer as

Statement : As it stands today, some Indian sports are not what they were once. India had significant victories in football and hockey earlier.

Conclusions :

I) Presently we have no good players in football and hockey in our country.

II) India lost many football and hockey matches in recent years.

  1. AOption (a)

    if only conclusion I follows;

  2. BOption (b)

    if only conclusion II follows;

  3. COption (c)

    if neither conclusion I nor II follows

  4. DOption (d)

    if both conclusions I and II follows.

View answer & explanation

Correct answer

Answer: (a)A.

if only conclusion I follows;

Explanation not yet available.

Question 274

AP Police Constable 2023• Full Test

Directions

In the following question, a statement is given followed by two conclusions numbered I and II. You have to decide which of the conclusion(s) follow(s) the statement. Give your answer as

Statement : All rectangles are parallelograms.

Conclusions :

I) No parallelogram is a rectangle.

II) All parallelograms are rectangles

  1. AOption (a)

    if only conclusion I follows;

  2. BOption (b)

    if only conclusion II follows;

  3. COption (c)

    if neither conclusion I nor II follows;

  4. DOption (d)

    if both conclusions I and II follows.

View answer & explanation

Correct answer

Answer: (a)A.

if only conclusion I follows;

Explanation not yet available.

Question 275

AP Police Constable 2023• Full Test

Directions

In the following question, a statement is given followed by two conclusions numbered I and II. You have to decide which of the conclusion(s) follow(s) the statement. Give your answer as

Statement : A and B are extremities of a diameter of a circle. P and Q are any two points on the circle such that APBQ is a quadrilateral.

Conclusions :

I) ∠APB = ∠AQB

II) ∠PAQ = ∠QBP

  1. AOption (a)

    if only conclusion I follows;

  2. BOption (b)

    if only conclusion II follows;

  3. COption (c)

    if neither conclusion I nor II follows;

  4. DOption (d)

    if both conclusions I and II follows.

View answer & explanation

Correct answer

Answer: (a)A.

if only conclusion I follows;

Explanation not yet available.

Question 276

AP Police Constable 2023• Full Test

Two objects A and B are projected up with velocities 20 ms–1 and 30 ms–1 respectively. The ratio of the distances travelled by them in the last second of their ascending motion is

  1. AOption (a)

    2 : 3

  2. BOption (b)

    4 : 1

  3. COption (c)

    1 : 1

  4. DOption (d)

    9 : 4

View answer & explanation

Correct answer

Answer: (a)A.

2 : 3

Explanation not yet available.

Question 277

AP Police Constable 2023• Full Test

A particle of mass ‘m’ is moving on a circle of radius ‘R’ with uniform speed ‘v’. The average force on particle in the interval in which it completes a half circle is equal to

  1. AOption (a)

    \(\rm \frac{mv^2}{R}\)

  2. BOption (b)

    \(\rm \frac{2mv^2}{\pi R}\)

  3. COption (c)

    \(\rm \frac{mv^2}{\pi R}\)

  4. DOption (d)

    \(\rm \frac{mv^2}{2\pi R}\)

View answer & explanation

Correct answer

Answer: (a)A.

\(\rm \frac{mv^2}{R}\)

Explanation not yet available.

Question 278

AP Police Constable 2023• Full Test

A man of mass 80 kg is moving in the compartment of a train with a velocity of 10 ms–1 eastward with respect to train frame. The train is moving with a velocity of 10 ms–1 westward with respect to ground. The kinetic energy of a man in the ground frame in Joules is

  1. AOption (a)

    0

  2. BOption (b)

    4 × 103

  3. COption (c)

    16 × 103

  4. DOption (d)

    8 × 103

View answer & explanation

Correct answer

Answer: (a)A.

0

Explanation not yet available.

Question 279

AP Police Constable 2023• Full Test

How much of heat is to be removed from 50 g of water at 50°C to convert it into ice at 0°C? (Latent heat of fusion of ice = 80 cal g–1 and specific heat of water = 1 cal/g/°C)

  1. AOption (a)

    6500 calorie

  2. BOption (b)

    650 calorie

  3. COption (c)

    650 J

  4. DOption (d)

    6500 J

View answer & explanation

Correct answer

Answer: (a)A.

6500 calorie

Explanation not yet available.

Question 280

AP Police Constable 2023• Full Test

The speed of sound in air is 340 ms–1. If its frequency is 170 Hz, then the distance between compression and immediate rarefaction (in metres) is

  1. AOption (a)

    1

  2. BOption (b)

    2

  3. COption (c)

    3

  4. DOption (d)

    4

View answer & explanation

Correct answer

Answer: (a)A.

1

Explanation not yet available.
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