Water tastes different in different places because of the dissolved _______ in it.
A small air bubble in a glass block, when seen from above, appears to be raised because of:
(a) refraction of light
(b) reflection of light
(c) reflection and refraction of light
(d) none of the above
Water can dissolve a large number of substances. But in a fixed amount of water, different amounts are dissolved for different substances.
Question 1(b) Following number line shows the temperature in degree Celsius (°C)at different places on a particular day. What is the temperature difference between the hottest and the coldest places among the above?