Which of the following surfaces will absorb radiant ...
Which of the following surfaces will absorb radiant heat energy?
white
red
black
blue
Correct answer is C
A black solution is a better radiator of heat and allow a better absorber of heat.
A wire of length 100cm and cross-sectional area 2.0 × 10-3cm2 has a resistance of 0.10 ω. Calculat...
For which of the underlisted quantities is the derived unit ML2T2 correct? i. momentum of a force...
The diagram above illustrates the wire connections to a three-pin plug. The wires P, Q and R respect...
An object weight 10N immersed in a liquid displaces a quantity of the liquid. If the liquid displace...
It is known that a neutron exists in a light atomic nucleus. Which of the following also exists in t...
THe velocity of sound in air at 16oC is 340ms-1. What will it be when the pressure is doubled and it...
106J of heat is required to boil off completely 2kg of a certain liquid. Neglecting heat lost to the...
The breaking up of an atomic nucleus into the fragment of nearly equal size is known as ...
Which of the following diagrams correctly illustrates the mode of oscillation of air in a tube for t...
A machine has an efficiency of 80%. If the machine is required to overcome a load of 60N with a forc...
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