NTSE SAT Physics Papers 04

This is NTSE SAT Physics Papers 04 .. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

On a bulb is written 220 Volt and 60 watt. Find out the resistance of the bulb and the value of the current flowing through it.

A
200 ohm / 4 ampere
B
806.66 ohm / 0.27 ampere
Correct
C
500 ohm / 2 ampere
D
100 ohm / 1 ampere

The maximum attraction in a magnet is-

A
On the surface
B
In the centre
C
On the poles
Correct
D
On the sides

The unit of frequency is-

A
Hertz
Correct
B
Kilo Calorie
C
Joule
D
Ohm

The first Astronaut in space was-

A
Neel Armstrong
B
Robert Godai
C
H. G. Wales
D
Uri Gagarin
Correct

A person takes time t to go once around a circular path of diameter 2R. The speed (v) of this person would be

A
\(\frac{{2\pi R}}{t}\)
Correct
B
\(\frac{{\pi {R^2}}}{t}\)
C
\(\frac{t}{{2\pi R}}\)
D
\(2\pi R.T.\)

A body of mass 2 kg is moving on a smooth floor in straight line with a uniform velocity of 10 m/s. Resultant force acting on the body is

A
2 N
B
Zero
Correct
C
10 N
D
20 N

The S.I. unit of pressure is

A
N/m
B
\(N/{m^2}\)
Correct
C
\(N.{m^2}\)
D
\({m^2}/N\)

The frequency of a source of sound is 50 Hz. How many times does it vibrate in one minute?

A
3000
Correct
B
300
C
50
D
30000

A person of mass 50 kg runs up to staircase of 40 steps in 6 sec. If the height of each step is 15 cm, then his power will be (if \(g = 10m/{s^2}\))

A
300 W
B
1000 W
C
500 W
Correct
D
600 W

The focal length of a concave mirror in air is f. If it is immersed in water \(\left( {n = \frac{4}{3}} \right)\), then the then the focal length will be

A
f
Correct
B
\(\frac{3}{4}f\)
C
4 f
D
\(\frac{4}{3}f\)

A student was asked to draw a ray diagram for information of image by a convex lens for the following positions of the object:Between F and 2FAt FAt 2FBetween F and optical centreThe position for which virtual image can be formed among these is

A
D
Correct
B
C
C
A
D
B

The value of equivalent resistance between the points A and B in the given circuit, will be

A
\(\frac{R}{6}\)
B
6 R
C
\(\frac{{11R}}{4}\)
Correct
D
\(\frac{{4R}}{{11}}\)

The far point of a myopic person is 75 cm in front of the eye. The nature and power of the lens required to correct the problem, will be

A
Convex lens, -1.33 D
B
Concave lens, +1.33 D
C
Convex lens, +1.33 D
D
Concave lens, -1.33 D
Correct

An electron enters in a magnetic field at right angle to it as shown in figure. The direction of force acting on the electron will be

A
Into the page
Correct
B
Out of the page
C
To the left
D
To the right

When 1 J of work is done to move a charge of 1 C from one point to another point then the potential difference between two points in a given circuit will be

A
8 V
B
4 V
C
Zero
D
1 V
Correct