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Unfortunately, Mr. M. Subramanian, who maintained this website lost his battle to cancer and passed away in July, 2019. The database has over 50,000 questions. If you are interested in purchasing the website/database, please reach out using the form here.

Q1. An athlete runs a long path before taking long jump to increase

Impulse

Inertia

Energy

Momentum

Q2. An electric bulb is rated 220 V and 60 W, When it is operated on 110 V. the power consumed will be

100 w

50 w

30 w

25 w

Q3. An athlete completes one round of a circular track of radius R in 40 sec. What will be his displacement at the end of 2 min 40 sec?

2 R

8 pr

2 pr

Zero

Q4. An aged person can see objects comfortably and distinctly placed in the range of 1 m to 5 m. He is suffering from ............

Myopia

Hypermetropia

Presbyopia

Cataract.

Q5. An AC is a .............

Unidirectional current

Steady current

Alternating current

Photo electric current.

Q6. Ampere second is the unit of

Power

Energy

charge

emf

Q7. Among the hydrocarbon which has the maximum calorific value

Butane

Ethane

Propane

Methane.

Q8. Among the following, which one is least used for generating electricity in India?

Natural gas

Hydro

Wind

Nuclear.

Q9. Among the following which letter shows lateral inversion?

Q10. Among the following which force is charge independent?

Electrostatic

Nuclear

Electromagnetic

All the above.

Q11. Among the following fossil fuels, which is the renewable source of energy?

Coal

Kerosene

Wood

Sunlight

Q12. Alternating current changes its direction ...........

Periodically

Uniformly

Spontaneously

Instantaneously.

Q13. Alternating current can be transmitted over a ...........

Short distance at a low cost

Long distance at a low cost

Short distance at a high cost

Long distance at a high cost

Q14. Alpha particles are deflected by ................. .

Only strong electric fields

Only strong magnetic fields

Strong electric and magnetic field

Neither electric nor magnetic fields

Q15. All galaxies are rushing away from each other was observed by

Edwin Hubble

Tycho Brahe

Ptolemy

Copernicus

Q16. AgHF radio station broadcasts at a frequency of 180 MHz. The wave length of the wave broadcast by the station is

0.30 m

3.3 m

27 ×1015 m

1.6 m

Q17. After the sun, which star is nearest to the earth?

Alpha centuari

Southern cross

Dhruva

Chitrao

Q18. According to work energy theorem which is equal to the work done by a force?

Change in pressure energy

Change in K.E

Change in P.E

All the above.

Q19. According to which theory. it is concluded that atom cannot be subdivided?

Dalton

Prout

Rutherford

J.J. Thomson

Q20. According to the law of periods.

V a r

T a r

T3 a r2

T2 a r3

Q21. According to Hooke’s law within the elastic limit, the stress is proportional to

Elastic force

Modulus of elasticity

Strain

Deforming force.

Q22. According to Flemming’s left hand rule, the middle finger represents the direction of .............

Motion of the negative charge

The external magnetic field

Force on the conductor

Current in the conductor.

Q23. According to Fleming’s left hand rule which particles get deflected towards the1eft in Rutherford’s experiment?

Positively charged

Either positively or negatively charged

Neither positively nor negatively charged

Negatively charged

Q24. According to Einstein, light consists of bundles of energy called

Corpuscles

Photons

Ether

None of the above.

Q25. According to Big-Bang theory, some cosmic explosion occurred around

150 billion years ago

150 million years ago

15 billion years ago

15 million years ago.

Q26. According to Big Bang theory, the universe is

Unchanging with time

Expanding with time

Alternately contracting and expanding

Going to die within a short period.

Q27. According to Benouli, the sum of the energies of a flowing liquid is constant when

Flow of liquid is unsteady

Pipe has a narrow end

Pipe has a broad end

Flow of liquid is steady

Q28. AC can be converted in to DC by using .............

Split rings

Slip rings

Cab on brushes

Hair springs

Q29. Above the threshold frequency, the photo electric current is

Directly proportional to the distance between the plates

Directly proportional to the stopping potential

Inversely proportional to the intensity of light

Directly proportional to the intensity of light.

Q30. A wire is stretched to triple its length. What will be its new resistivity?

Tripled

Remains constant

Reduces into three time

Cannot say

Q31. A velocity - time graph, in the form of straight line sloping downwards indicates

Accelerated motion

Constant motion

Retarded motion

none of the above

Q32. A wave completes 600 oscillation is 1 minute. What is the frequency of the wave?

10Hz

60Hz

3600 Hz

6 Hz

Q33. A typical solar cell can produce about.

0.5 w

7 w

10w

0.7w

Q34. A transformer produces 100 V from an input of 50 V. What does this tell?

It is very efficient.

It is a step-up transformer

It is a step down transformer

It is not effifient

Q35. A transformer is used to convert 220 V into 11 V. The number of turns are 2000 in primary. What is the number of turns in secondary?

120

100

200

2400

Q36. A thin tube containing a solution of quinine sulphate when placed in the path of UV rays fluorescence with ......... light

Green

Blue

Red

yellow.

Q37. A thin transparent membrane covering the cornea and the only protective feature of the human eye is

Iris

Conjunctiva

Retina

Pupil

Q38. A telescope has focal length of objective and eyepiece as 300 cm and 6 cm respectively. What is the magnification of telescope? [M = v/u]

180

73.3

Q39. A telescope has focal length of objective and eye piece as 200 cm and 5 cm respectively. What is the magnification of telescope?

0.01

Q40. A substance cannot catch fire or burn as long as its temperature is lower than

Critical temp

Boiling point

Ignition temperature

Melting point.

Q41. A student is not able to see clearly the question written on a black board placed at a distance of 5 m from him. He is suffering from

Cataract

Presbyopia

Hypermetropia

Myopia

Q42. A straight wire of length 0.4 meter and carrying a current of 1. 5n is placed perpendicular in uniform magnetic field” of induction 3 tesla. What is the force on the wire?

1.44 N

6 N

1.8 N

18 N

Q43. A stone released from the roof of a building, it reaches the ground in 2 sec. What is the height of the building?

9.6 m

4.9 m

19.6 m

39.2 m

Q44. A stone falling towards the earth

Attracts the earth

Is attracted by earth

Both stone and earth attract each other

Above statements are in correct.

Q45. A stone dropped from a height of 1 m, will take a time of ............ second to reach the ground.

1 s

2 s

0.46 s

1.46 s

Q46. A spring scale reads 20 N as it pulls a 5 kg mass across a table. What is the magnitude of the force exerted by the mass?

49 N

20 N

5 M

4 N

Q47. A spring scale reads 10 N as it pulls 5 kg mass across a table. What is the magnitude of the force exerted by mass on the spring scale? [action and reaction force are equals]

50 N

5 N

10N

Q48. A spherical mirror and a thin spherical lens have each a focal length of –15 cm. The mirror and the lens are likely to be

Both concave

The mirror is concave and the lens is convex

Both convex

The mirror is convex and lens is concave.

Q49. A sound wave has a frequency of 1000 Hz and a wavelength of 32 cm. What is the velocity of the sound wave?

320 m/s

32000 m/s

3.2 m/s

3200 m/s.

Q50. A solar water heater cannot be used to get hot water on

A cloudy day

A hot day

Sunny day

Windy day

Answers Evaluate

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