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General physics- Knowledge test
Question 21 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Of the following properties of a wave, the one that is independent of the other is its
amplitude | |
velocity | |
wavelength | |
frequency |
Question 22 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2
0.14 m/s | |
140 m/s | |
1.4 km/s | |
14 m/s |
Question 23 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Nuclear sizes are expressed in a unit named
Fermi | |
angstrom | |
newton | |
tesla |
Question 24 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
It takes much longer to cook food in the hills than in the plains, because
in the hills the atmospheric pressure is lower than that in the plains and therefore water boils at a temperature lower than 100oC causing an increase in cooking time | |
due to low atmospheric pressure on the hills, the water boils at a temperature higher than 100oC and therefore water takes longer to boil | |
in the hills the atmospheric density is low and therefore a lot of heat is lost to the atmosphere | |
in the hills the humidity is high and therefore a lot of heat is absorbed by the atmosphere leaving very little heat for cooking |
Question 25 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
The absorption of ink by blotting paper involves
viscosity of ink | |
capillary action phenomenon | |
diffusion of ink through the blotting | |
siphon action |
There are 25 questions to complete.