Mark the correct statement...

Mark the correct statement

Equations of special relativity are not applicable for small speeds.

Equations of special relativity are applicable for all speeds

Nonrelativistic equation give exact result for small speeds.

Nonrelativistic equation never give exact result.

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The correct Answer is:

B, D

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Mark the incorrect statement of the following

Factorial of a natural number n is the product of the first n natural numbers

The numbers ways of arranging n unlike objects is n!

Order matters for combination

The number of combinations of n different things taken r at time is `.^(n)C_(r)`

Rate of a reaction depends on the initial concentration of reactants

Rate constant of a reaction does not depend on the initial concentration of reactants

Concentration and surface area decreases the number of collision

The molecularity of a reaction is the no. of molecules or ions that participate in the rate determining step.

CO which is a major pollutant resulting from combustion of fuels in automobile plays a major role in photochemical smog.

Classical smog has an oxidising character while photochemicla smog is reducing in character

Classical smog is good for health but not photochemical somg.

Photochemical smog occurs in a day time, while classical smog occurs in the morning time.