What is 'Fiber Optics' used for? MCQ with Answer and Explanation

What is 'Fiber Optics' used for?
A. Storing physical data
B. Faster communication via light
C. Cooking food
D. Powering cars
Answer: Option B
Solution (By JKExamLibrary)
Fiber optics use thin strands of glass to transmit data as pulses of light.

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Practice More Science and Technology Questions

Question #1 Report Error
What is a 'Server' in computing?
A. A portable USB device
B. A display for graphics
C. A type of keyboard
D. A computer that provides data to other computers

Correct Answer: Option D


Explanation:
A server is a central system that provides resources or services to other computers on a network.

Question #2 Report Error
Which of these is a major source of greenhouse gas emissions?
A. Solar Panel Manufacturing
B. Fossil Fuel Burning
C. Planting Forests
D. Electric Cars

Correct Answer: Option B


Explanation:
Burning coal, oil, and gas for electricity and transport is a leading cause of emissions.

Question #3 Report Error
What is the study of weather called?
A. Astronomy
B. Seismology
C. Meteorology
D. Geography

Correct Answer: Option C


Explanation:
Meteorology is the scientific study of the atmosphere and weather.