ON-C3-par-
How much water must be evaporated from 5 litre of 10 M HCl to change its pH by 2 nits I
1) 1.5litre
2) 0.5 litre
3) 254 litre
44.95 litre
u mumtia 1763 and 475 metectively. Calculate the
Answers
Answer:
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general when light falls on a body part of it is reflected. Port is
absorbed and the remaining part is transmitted. To what extent it is reflected/
absorbed / transmitted depends upon a number of factors such as the
material, physical state) (solid, liquid, gas) temperature of the body and
frequency of the light. Part of light absorbed may be emitted by the body
Absorption of light also results in rise in temperature of the body in general
A substance that transmits most of the incident light is said to be transparent.
For example, water is transparent. Lampblack absorbs most of the light
falling on it. A mirror reflects most of the light on it
a) Suppose 10% of light incident on a body is reflected and 70% is
absorbed. What can you say about the fraction transmitted?
