EASY
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Example/ Examples of  renewable energy source is/are

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Important Questions on Sources of Energy

MEDIUM
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy

Consider the following statements and choose the correct alternative.

Statement - I : Heating capacity of biogas is more than that of biomass.

Statement - II : Biogas produces lesser pollution as compared to biomass.

EASY
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy
Which of the following cells is being used in the communication satellite.
HARD
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy
The solar constant at a place is 1.4 kw/m2. The solar energy received by an area of 4 m2 per second at this place is: 
EASY
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy
Nowadays bio-diesel is used in transportation vehicles as an alternate to diesel. Write two advantages of this measure.
EASY
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy
Which of the following variety of coal contains the highest percentage of carbon? 
EASY
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy

What are the limitations in harnessing wind energy?

EASY
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy
Which of the following is a major constitute of Bio-gas?
MEDIUM
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy
Explain the working of a solar water heater with the help of a labelled diagram.
EASY
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy
Which of the following is not an example of a biomass energy source?
EASY
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy
The main constituent of bio-gas is 
MEDIUM
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy

Label 1 and 2 in the given figure.

Question Image

EASY
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy
Which of the following is not an example of a bio-mass energy source?
MEDIUM
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy
Name the major constituent of biogas. Write the properties of biogas which make it a good fuel.
EASY
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy

Plane mirror reflector is used inside the solar cooker box. Explain why.

MEDIUM
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy
Name the two devices that work using heat energy of the sun.
MEDIUM
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy
List any three advantages and disadvantages of solar energy. 
EASY
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy
Solar energy is treated as the energy source of the future. Write any two solar devices working on solar energy that can be utilised in daily life.
MEDIUM
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy

In a Solar Furnace, sunlight is concentrated at the ________ of the concave mirror.

EASY
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy
Which of the following is the main component of petroleum gas?
EASY
Science>Physics>Sources of Energy>Alternative or Non-conventional Sources of Energy
Which of the following is not an example of a bio-mass energy source?