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Class 01 – Trigonometric Equations
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Momentum of Object Hit by Light
Order of Reaction $$P + Q \to R + S$$
Problem
In the reaction,
the time taken for 75% reaction of P is twice the time taken for 50% reaction of P. The concentration of Q varies with reaction time as shown in the figure. The overall order of the reaction is
(A) 2 (B) 3
(C) 0 (D) 1
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Mensuration Problem & Solution
A 5.25 m by 3.78 m rectangular courtyard is to be paved with square tiles of the same size such that only whole tiles are used. What is the largest possible size of such a tile? Also, find the number of tiles required.
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Why, Frequency = 1/Time?
Q: For waves, why is 
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Bond Angle in $$NO_2$$ and Hybridisation
The O – N – O bond angle in NO2 is around 134°. One way to explain this is by making use of resonance structure and hybridisation theory. Let us consider the following resonance structure of NO2:
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