Heat Test

Result

Heat Test - 4

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Weekly Quiz Competition

Question 1
1 / -0

When water is heated from 0° to 10°C, its volume

A
increases

B
decreases

C
does not change

D
first decreases and then increases

Solution

Water when heated through 4°C shows anomalous behaviour. When it is heated from 0°C to 4°C, then volume of water decreases and after 4°C volume increases.
Question 2
1 / -0

If the sun becomes twice as hot as it is now then

A
the output of radiated energy will be eight times larger

B
it will radiate predominantly in the infrared

C
it will radiate predominantly in the ultraviolet

D
the output of the radiated energy will be eight times smaller

Solution

As Wave length emitted is inversely proportional to the temperature of the source, As the temperature increases the wavelength will decreases so it will radiate predominantly in the ultraviolet.