General Science - Physics MCQs

Physics Objective (Multiple Choice) General Knowledge & General Science Questions & Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Examinations.

1. Which among the following temperature scale is based upon absolute zero?

[A] Celsius
[B] Fahrenheit
[C] Kelvin
[D] Rankine

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2. Consider the following statements: 

  1. It takes approximately 11 seconds for the light to reach the earth from moon
  2. It takes approximately  8 minutes for the light to reach from the sun. 
  3. It takes 4.22 years for the light to reach from the nearest star Alpha Centauri 

Which among the above statements is/ are correct ?

[A] 1 & 2 only
[B] 2 & 3 only
[C] 1 & 3 only
[D] 2 only

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3. “Svedberg Unit” is a unit of _________?

[A] Concentration
[B] Size
[C] Density
[D] Time

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4. Which of the following is / are correct statements?

  1. When glass rod is rubbed with silk, negative charge develops on silk
  2. When Ebonite rod is rubbed with fur, negative charge develops on fur

Select the correct option from the codes given below:

[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2

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5. Which of the following is / are correct statements with respect to the image formed in a plane mirror?  

  1. Image is always virtual
  2. The distance of image from the mirror is same as the distance between object and mirror
  3. Image is laterally inverted

Select the correct option from the codes given below:

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3

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6. Two Flat mirrors are placed at an angle of 60° from each other. How many images will be formed of a Candle placed in between them?

[A] Three
[B] Four
[C] Five
[D] Six

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7. Which among the following can produce virtual image?

  1. Converging lens
  2. Concave Mirror
  3. Flat Mirror

Select the correct option from the codes given below:

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 3
[D] 1, 2 & 3

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8. If we look at the floating piece of iceberg on the sea, approximately what fraction of it is visible above the seawater level?

[A] 1/8th
[B] 1/6th
[C] 1/10th
[D] 1/5th

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9. With reference to the mobile telephony, the USSD technology is increasingly being adopted in recent times for various services. How the USSD is different from SMS ?
1. While USSD maintains a continuous session so that users receive immediate response, SMS service can’t involve a continuous session
2. While per message length in USSD is 182 alphanumeric characters, it 160 alphanumeric characters for SMS
Choose the correct option from the codes given below:

[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2

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10. Which among the following keep changing for a body in uniform circular motion?
1. Speed
2. Amplitude
3. Velocity
4. Acceleration
Choose the correct option from the codes given below:

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 3 & 4
[D] Only 1 & 4

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