Question
Bank
Very Short Answer (1 Marks)
1) Which of the following pairs has the same dimensions?
(a) specific heat and latent heat(b) lmpulse and momentum
(c) surface tension and force
(d) moment of lnertia and torque
2) The atmospheric pressure is 106 dyne/cm². What is its value in SI unit?
(a) 105 newton/m²(b) 106 newton/m²
(c) 104 newton/m²
(d) 103 newton/m²
3) In SI system the fundamental units are
(a) meter, kilogram, second, ampere, Kelvin, mole and candela(b) meter, kilogram, second, coulomb, Kelvin, mole and candela
(c) meter, Newton, second, ampere, Kelvin, mole and candela
(d) meter, kilogram, second, ampere, Kelvin, mole and lux
4) Absolute error of the measurement is
(a) the difference between the individual measurement and the true value of the quantity cubed.(b) the difference between the individual measurement and the true value of the quantity squared.
(c) the difference between two individual measurements and their mean
(d) the difference between the individual measurement and the true value of the quantity
5) Light year is a unit of
(a) time(b) distance
(c) sunlight intensity
(d) mass
6) A small body attached at the end of an inextensible string completes a vertical circle, then its
(a) angular momentum remains constant(b) linear momentum remains constant
(c) angular velocity remains constant
(d) total mechanical energy remains constant
7) A body is traveling in a circle at constant speed. It
(a) has an inward acceleration(b) has constant velocity.
(c) has no acceleration
(d) has an outward radial acceleration
8) The total flight requires a time that is?
(a) four times the time necessary to reach the maximum height.(b) thrice the time necessary to reach the maximum height
(c) equal to the time necessary to reach the maximum height.
(d) twice the time necessary to reach the maximum height
9) The path followed by a projectile is called its?
(a) Territory(b) Treasury
(c) Tractor
(d) Trajectory
10) A body travels along the circumference of a circle of radius 2 m with a linear velocity of 6 m/s . Then its angular velocity is
(a) 6 rad /s(b) 3 rad /s
(c) 2 rad / s
12) A car is moving with a speed of 30 m/s on a circular path of radius 500 m. Its speed is increasing at the rate of 2 m/s². The acceleration of the car is
(a) 2 m/s²(b) 9.8 m/s²
(c) 1.8 m/2
(d) 2.7 m/s²
13) Electromagnetic waves are produced by
- A static charge
- An accelerated charge
- A moving charge
- Charged particles
14) In electromagnetic waves the phase difference between electric field vector and magnetic field vector is
- zero
- π/2
- π
- π/3
15) n electromagnetic waves the phase difference between electric field vector and magnetic field vector is
- zero
- π/2
- π
- π/3
(2 Marks Question)
1) Which of the following rays are not electromagnetic waves?
- Gamma rays
- Beta rays
- Heat rays
- X rays
2) Scalar quantities are completely described by their
- unit
- area
- direction
- magnitude
3) Among the following the scalar quantity is
- length
- mass
- volume
- all of above
- 4) Which of the following is a physical quantity that has a magnitude but no direction?
- A.
Vector
- B.
Frame of reference
- C.
Resultant
- D.
Scalar
5) Identify the following quantities as scalar or vector: the mass of an object, the number of leaves on a tree, wind velocity.
- A.
Vector, scalar, scalar
- B.
Vector, scalar, vector
- C.
Scalar, scalar, vector
- D.
Scalar, vector, vector
6) Which of the following is an example of a vector quantity?
- A.
Temperature
- B.
Velocity
- C.
Volume
- D.
Mass
7) Which of the following is the motion of objects moving in two dimensions under the influence of gravity?
- A.
Vertical velocity
- B.
Horizontal velocity
- C.
Directrix
- D.
Projectile motion
8) Which of the following is not an example of projectile motion?
- A.
A volleyball served over a net
- B.
A baseball hit by a bat
- C.
A hot-air balloon drifting toward Earth
- D.
A long jumper in action
9)
10)
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