Physics Question

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Q1. Choose the correct options i.e. A, B, C, or D and fill the circle.
1. The sum of two perpendicular forces 8N and 6N is
2N 10N 14N 5N
2. If A Bsinθ=ABcosθ then a ngle b etween the A and B i s

30
45
60
180
3. Th e magnitude of unit v ector i ×j is

1
-1
-j
K
4. Cr oss product of j×k is

0
1
I
-i
5. Im pulse has same unit a s that of

Force
Energy
Mass
Linear
momentum
6. Bal listic massiles are use d for

Short ranges
Long ranges
Very long ranges
Any range
7. Th e area between the v elocity time graph is equal t o

Time
Distance
Velocity
Mass
8. Th e velocity of an object is do ubled then its K.E is

Doubled
Constant
Four times
Sixteen times
9. If t he force acting on th e body is doubled then the accele ration is

Constant
Double
Half
One fourth
10 . Hig ht of projectile is ma ximu m at the angle of

45
60
30
90
11. For which pair of the horizontal ranges of the projectile is equal
30,45 30,60 50.70 20,40
12. Area under the force displacement graph is equal to

Velocity
Power
Work
Acceleration
13 . Tid al energy is due to th e grav itational pull of the

Moon
Mercury
Sun
Earth
14 . W hich is the non conser vative force

Frictional force
Gravitational force
Magnetic force
Electric force
15 . W hich one is the non-re newa ble energy source

Wind
Biomass
Coal
Sunlight
16 . W hich one is the conser vative force

Elastic spring force
Friction
Air resistance
Tension in the string
17 . In t he rotational motion analo gous of force is

Torque
Inertia
Velocity
Momentum
19 . In r otational motion the analo gous of mass is

Momentum
Inertia
Moment of inertia
Angular
momentum
20 . Th e number of satellite i n the global positioning sys tem is

22
3
24
36
21 . W hich electromagnetic i s use d for the satellite com munic ation

Microwaves
Radio waves
x-rays
Light waves

22. If a body rotates under the centripetal force is then the centripetal accelera tion is

Non zero
Variable
Increasing
Zero
23. Equation of continuity give the conservation of
Energy Mass Power Density
24. Terminal velocity in the fluid of a particle depends upon the

Nature of the fluid
Acceleration of the particle
Force on the particle
Angular velocity of the particle
25 . Hig h concentration of re d blo od cells increase the v iscosit y of blood from

2-3 times of water
3-5 times of water
7-9 times of water
5-7 times of water
26 . A 2 0m high tank is full o f wate r. A hole appears at i ts mid dle. The speed of efflux will be

10ms-1
14ms-1
9.8ms-1
11.5ms-1
27 . 1 t orr is equal to

133.3Nm-2
133.3Nm2
133.3Nm
133.3Nm-1
28 . If t he radius of the dropl et bec omes half, then the t ermin al velocity is

Half
Four times
One third
One fourth
29 . Blo od has density equal to

Oil
Honey
Milk
Water
30 . Pro duct of frequency an d tim e period is

1
Displacement
Velocity
Amplitude
31 . If t he length of simple is doubl ed then its time peri od is

Half
4 times
√2 𝑡𝑖𝑚𝑒𝑠

2 times
32 . Dis tance covered by bo dy in o ne vibration is 20cm. The a mplitude of the vi bratio n will be

5cm
10cm
15cm
20cm

33. Tunning of radio is the best example of
Mechanical resonance Electrical resonance Magnetic resonance Musical resonance
34. Frequency of second pendulum is

2Hz
10Hz
0.5Hz
0.1Hz
35 . Sp eed of sound in vacuu m is

333 ms-1
332 ms-1
340 ms-1
Zero
36 . Sp eed of sound in vacuu m at 0 0 C

333 ms-1
332 ms-1
340 ms-1
Zero
37 . Th e louder the sound th e grea ter will be the

Wavelength
Amplitude
Speed
Frequency
38 . It b of t ecomes difficult to r
wo sounds is more t ecogni
han ze the beats whn the differ ence in the betwe en the two frequencies

10Hz
20Hz
30Hz
50Hz
39 . Dis tance between the a djacen t node and antinode is

λ/2
Λ
λ/4
λ/3
40 . Th e value of ϒ for polyat omic gasses is

1.40
1.29
1.54
1.32
41 . Th e wavelength of a wa ve for closed pipe having th e leng th l its fundament al mo de is

2l
4l
l/2
L
42 . Fri nge spacing increases when we use

Lowest order
Higest order
Red light
Blue light

43. Polarization proves that the light waves are

Longitudinal
Stationary
Transverse
Matter
For which of the following colors will be the fringes width will be minimum in the double slit 44.
experiment
Violet Red Green Yellow
45. Thin film shows color due to

Interference
Diffraction
Polarization
Dispersion
46 . Th e light energy travels in spa ce as waves was firstl y perp osed by

Maxwell
Young
Einstein
Huygen
47 . Ne ar point for a person i s

20cm
25cm
25dm
25nm
48 . Effi ciency of diesel engi ne is

25-30 percent
30-35 percent
35-40 percent
40-45 percent
49 . In which process the ent ropy of the system remain s const ant

Isothermal
Isochoric
Adiabatic
Irreversible
50 . Sol id ice, liquid water, a nd wa ter vapors consist in t herm al equilibrium at a tempe rature

273K
273.16K
100C
273C

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