EASY
CTET Paper 2
IMPORTANT
Earn 100

"Energy can neither be created nor be destroyed", which law is this?

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Important Questions on Work, Power and Energy

HARD
CTET Paper 2
IMPORTANT
Science and Pedagogy CTET and TETs>Chapter 10 - Work, Power and Energy>CHAPTER EXERCISE>Q 35
A porter lifts the luggage weighing 5 kg from the ground and puts on the head. Then, he stands still for some time. How much work he is doing while holding the luggage on his head and standing still?
EASY
CTET Paper 2
IMPORTANT
Science and Pedagogy CTET and TETs>Chapter 10 - Work, Power and Energy>CHAPTER EXERCISE>Q 36
In which mode, heat is transferred from one place to other by the actual motion of particles of the medium?
EASY
CTET Paper 2
IMPORTANT
Science and Pedagogy CTET and TETs>Chapter 10 - Work, Power and Energy>CHAPTER EXERCISE>Q 37
Which one is used for rearview in vehicles?
EASY
CTET Paper 2
IMPORTANT
Science and Pedagogy CTET and TETs>Chapter 10 - Work, Power and Energy>Previous Years' Questions>Q 38
An air bubble inside water behaves like a _____.
MEDIUM
CTET Paper 2
IMPORTANT
Science and Pedagogy CTET and TETs>Chapter 10 - Work, Power and Energy>Previous Years' Questions>Q 39
LED and CFL are very commonly used as sources of light in homes. Which of the following statements is true?
HARD
CTET Paper 2
IMPORTANT
Science and Pedagogy CTET and TETs>Chapter 10 - Work, Power and Energy>Previous Years' Questions>Q 40
A 1000 W heater is used every day for 90 minutes. This heater will consume units of electrical energy in 30 days:
EASY
CTET Paper 2
IMPORTANT
Science and Pedagogy CTET and TETs>Chapter 10 - Work, Power and Energy>Previous Years' Questions>Q 41
Which part of the eye is adjustable in accordance with the light conditions?
EASY
CTET Paper 2
IMPORTANT
Science and Pedagogy CTET and TETs>Chapter 10 - Work, Power and Energy>Previous Years' Questions>Q 42
Which colour component of white light deviates the most through a prism?