SSC CGL 2017 Special : Physics Questions from Previous Papers - Set 1

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1. For which, Diode is used ?
1. modulation
2. oscillation
3. amplification
4. purification
2. Who among the following developed the technology of underground nuclear explosion ?
1. Dr. Homi J. Bhabha
2. Dr. Vikram Sarabhai
   
3. Dr. Raja Ramanna
4. Dr. P. K. Iyengar
3. Which among the following types of coal produces most heat per unit ?
1. Coal
2. Lignite
3. Anthracite
4. Pit
4. Which among the following waves is used for communication by artificial satellites ?
1. Micro Waves
2. Radio Waves
3. A.M.
4. Frequency of 10^16 series
5. What is found in frequency modulation ?
1. Fixed frequency
2. Fixed dimension
3. Change in frequency and dimension  
4. Change in dimension only 
6. When the speed of car is doubled, then what will be the braking force of the car to stop it in the same distance ?
1. four times
2. two times
3. half
4. one-fouth
7. The dimension of which of the following is the same as that of impulse ?
1. Volume
2. Momentum
3. Torque
4. Change in the rate of momentum
8. Which among the following is the fundamental quantity ?
1. Volume
2. Time
3. Velocity
4. Force
9. When a ring of metal is heated what happens to its hole ?
1. expands
2. contracts
3. it expands or contracts according to its diameter
4. it expands or contracts according to its coefficient of expansion 
10. If the diameter of a capillary is doubled, then the rise of water in it will be
1. two times
2. half
3. four times
4. no change
11. Why the needle of iron swims on water surface when it is kept gently ?
1. It will remain under the water, when it will displace more water than its weight
2. the density of needle is less than that of water
3. due to surface tension
4. due to its shape
12. The mass of a star is two times the mass of the Sun. How it will come to an end ?
1. Neutron Star
2. Black hole
3. White Dwarf
4. Red Giant
13. Rain drops fall from great height. Which among the following statements is true regarding it ?
1. they fall with that ultimate velocity, which are different for different droplets
2. they fall with same ultimate velocity
3. their velocity increases and they fall with differnt velocity on the earth 
4. their velocity increases and they fall with same velocity on the earth
14. On which of the following techniques photostat machine works ? 
1. Magnetic Image - Making
2. Thermal Image - Making
3. Electrostatic Image - Making
4. Electromagnetic Image - Making
15. One Kilowatt hour is equal to ?
1. 3.6 Mega Joule
2. 3.8 Mega Joule
3. 3.2 Mega Joule
4. 4.0 Mega Joule 
16. What is the minimum escape velocity of rocket to be launched into space ?
1. 5 Km/Sec
2. 6 Km/Sec
3. 11 Km/Sec
4. 15 Km/Sec
17. Which of the following statements is true when we see 'rainbow' ?
1. We face sun and raindrops 
2. The Sun remains behind us and we face raindrops
3. In light rainfall, we face Sun
4. The sky remains clear and the sun is at lower position in the sky
18. How much calorie of energy is released by a boiled egg ?
1. 40
2. 50
3. 60
4. 77
19. The splitting of different colours of light in a prism is : 
1. Reflection of light
2. Dispersion of light
3. Diffraction of light
4. Refraction of light
20. A boat will submerge when it displaces water equal to its own :
1. volume
2. weight
3. surface area
4. density 

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