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Biology; Chemistry; Physics: Post your doubts here!

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remember --> red towards infrared.............blue and violet towards ultraviolet!
red has greater wavelength and blue has greater frequency!
the speed like all other waves is same.
now you can do 22
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in 29, capacitor is shown, which only when completely charged will allow the current to flow in other branches, and this charging of capacitor causes the time delay!
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38, the mass decreases, right? so the atoms would be lost? it would be A

check the answers urself, these are my own guesses!
 
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22-The componets of light all have the same speed and so does the electromagnetic spectrum.However,red light has a greater wave length as it deviates least in the prism. so answer is C
29-A the Capacitor takes time for charging,so it causes time delay.
38.A in radioactive decay, the following things decrease to their half:
-mass
-size
-no. of atoms
-Rate of emission
 
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The given energy is Kinetic! I did the same mistake!
recall law of conservation of energy
it can not be created nor destroyed. It is changed from one form to another but the total amount remains constant
K.E converted to P.E
 
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