MEDIUM
10th CBSE
IMPORTANT
Earn 100

What is OTEC? What is the minimum requirement to operate the OTEC system?

Important Questions on Sources of Energy

MEDIUM
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 3 - Sources of Energy>Test Your Self Exercise 2>Q 7
Distinguish between nuclear fission and nuclear fusion.
MEDIUM
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 3 - Sources of Energy>HIGHER ORDER THINKING SKILLS (HOTS)>Q 1
Can any source of energy be pollution-free? Why or why not?
MEDIUM
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 3 - Sources of Energy>HIGHER ORDER THINKING SKILLS (HOTS)>Q 2
Why is bio-gas a better fuel than animal dung-cakes?
MEDIUM
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 3 - Sources of Energy>HIGHER ORDER THINKING SKILLS (HOTS)>Q 3
On what principle does a solar heating device operate? The solar constant at a place is 1.4 kW m-2. How much solar energy will be received at this place per second over an area of 10 m2?
MEDIUM
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 3 - Sources of Energy>HIGHER ORDER THINKING SKILLS (HOTS)>Q 4
Give reasons to explain why is it not possible to use solar cells to meet all our energy needs.
MEDIUM
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 3 - Sources of Energy>HIGHER ORDER THINKING SKILLS (HOTS)>Q 5
A substance is added to LPG cylinders while filling to make the detection of leakage of LPG from the cylinders easy. 
Name this substance.
MEDIUM
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 3 - Sources of Energy>HIGHER ORDER THINKING SKILLS (HOTS)>Q 5
A substance is added to LPG cylinders while filling to make the detection of leakage of LPG from the cylinders easy.
How does this substance make the detection of leakage of LPG from the cylinders easy? 
MEDIUM
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 3 - Sources of Energy>HIGHER ORDER THINKING SKILLS (HOTS)>Q 6
A student constructed a box-type solar cooker. He found that it does not work efficiently. What could this be due to? Give any four possible mistakes in the construction and operation of the cooker. What maximum temperature can ordinarily be reached inside a solar cooker?