#### 11th Standard Physics English Medium Free Online Test Creative 1 Mark Questions - Part Two

11th Standard

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Physics

Time : 00:10:00 Hrs
Total Marks : 10

Answer all the questions

10 x 1 = 10
1. Microscopic group of Physics dealt with the study of ____________.

(a)

classical physics

(b)

statistical mechanics

(c)

fluid mechanics

(d)

quantum physics

2. The speed of a train is reduced from 60 kmh-1 to 15 kmh-1 in a distance of 450 m. If the retardation is uniform is the distance, it will travel further before coming to rest is

(a)

25m

(b)

30m

(c)

15m

(d)

20m

3. When a projectile is at its maximum height, the direction of its velocity and acceleration are

(a)

parallel to each other

(b)

perpendicular to each other

(c)

anti-parallel to each other

(d)

depends on its speed

4. A marble block of mass 3 kg lying on ice when given a velocity of 5 ms-1is stopped by friction in 10s. Then the coefficient of friction is

(a)

0.01

(b)

0.05

(c)

0.03

(d)

0.06

5. A person holding a rifle (mass of person and rifle together is 100 kg) stands on a smooth surface and fires 10 shots horizontally, in 5 s. Each bullet has a mass of 10 g with a muzzle velocity of 800 ms-1. The final velocity acquired by the person and the average force exerted on the person are:

(a)

-0.08 ms-1, 16N

(b)

-0.8 ms-1, 8 N

(c)

-1.6 ms-1, 16N

(d)

-1.6 ms-1 , 8 N

6. The angle between the normal force and the resultant force of normal force and maximum frictional force is

(a)

angle of friction

(b)

angle of repose

(c)

angle of inclination

(d)

none of the above

7. An escalator is moving downwards with a uniform speed 5 ms-1. A man of mass 60 kg is running upwards on it at a uniform speed 10 ms-1. If the height of the escalator is 10 m, the work done by the man is going up the escalator is (Take g = 10 ms-2).

(a)

12J

(b)

12kJ

(c)

1.2kJ

(d)

120kJ

8. When a mass is rotating in a plane about a fixed point its angular momentum is directed along

(a)

A line perpendicular to the plane of rotation

(b)

The radius

(c)

The tangent to the circle

(d)

An angle of 45° to the plane of rotation

9. In a rectangle ABCD (BC = 2AB). The moment of inertia is minimum along axis through

(a)

BC

(b)

BD

(c)

HF

(d)

EG

10. A particle is kept at rest at a distance R (earth's radius) above the earth's surface, the minimum speed with which it should projected so that it does not return is

(a)

$\sqrt { \frac { GM }{ 4R } }$

(b)

$\sqrt { \frac { GM }{ 2R } }$

(c)

$\sqrt { \frac { GM }{ R } }$

(d)

$\sqrt { \frac { 2GM }{ R } }$