NTSE SAT Physics Papers 09

This is NTSE SAT Physics Papers 09 .. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

Find the incorrect statement from the following;

A
When a ray of light enters from one optical medium to another having different refractive index, its speed intensity changes but frequency does not change.
B
Iris is responsible for accommodation of the eye
C
Stars seem higher than they actually are because of the bending of light on passing through Earth's atmosphere
D
A student sitting in the first row is unable to read clearly from the black board because he is suffering from myopia.
Correct

Unit of pressure in S.I. system is

A
Calorie
Correct
B
Kelvin
C
Newton
D
Pascal

Temperature of an iron block is \(140^\circ \)F. Its temperature in Celsius scale will be-

A
\(100^\circ \)C
B
\(140^\circ \)C
C
\(32^\circ \)C
Correct
D
\(60^\circ \)C

A drop of water is always spherical due to-

A
Atmospheric pressure
B
Gravity
C
Viscosity
D
Surface tension
Correct

Speed of super-sonic Aircraft is-

A
Equal to speed of sound
B
Below speed of sound
C
Equal to speed of light
D
More than speed of sound
Correct

The escape velocity from earth is 11 km/sec. The escape velocity from a planet having equal density and double radius of earth is-

A
5.5 km/sec
B
22 km/sec
C
11 km/sec
Correct
D
15.56 km/sec

The resultant resistance between A and B in the following circuit is-

A
\(20\,\Omega \)
Correct
B
\(5\,\Omega \)
C
\(40\,\Omega \)
D
\(10\,\Omega \)

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

A
Coming out of paper at right angle
B
To the right
Correct
C
Going into the paper at right angle
D
To the left

Which of the following correctly represents graphical relation between the angle of incidence I and the angle of reflection r?

A
Correct
B
C
D

Which of the following lenses would you prefer to use while reading small letters found in a dictionary-

A
Concave lens of focal length 50 cm
Correct
B
Convex lens of focal length 5 cm
C
Convex lens of focal length 50 cm
D
Concave lens of focal length 50 cm

Length of a conducting wire is increased by 100 percent. The change in the resistance of the wire will be-

A
300 percent
B
100 percent
C
50 percent
D
200 percent
Correct

Three light bulbs of 40 W, 60 W and 100 W are connected in series with 220 volt source. Which of the bulbs will grew brightest?

A
100 W
B
All with same brightness
C
40 W
Correct
D
60 W

The value of gravitational acceleration g at the centre of the earth is-

A
\(9.8\,m/{s^2}\)
B
\(32.2\,m/{s^2}\)
C
Zero
D
Infinite
Correct

The acceleration versus time graph of an object is as shown in figure. The corresponding velocity – time graph of the object is

A
B
C
D
Correct

The graph below describe the motion of a ball rebounding from a horizontal surface being released from a point above the surface.The quantity represented in the y-axis is the ball's

A
Velocity
B
Displacement
Correct
C
momentum
D
Acceleration