In a laboratory experiment, a diffraction grating produces an interference pattern on a screen. If the number of slits in the gr
1 answer:
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Answer: (d)
Explanation:
Given
Mass of the first ram
The velocity of this ram is
Mass of the second ram
The velocity of this ram
They combined after the collision
Conserving the momentum
Momentum after the collision will be
Therefore, option (d) is correct
Answer : The value of is 286.2 J and 286.2 J respectively.
Explanation : Given,
Moles of sample = 0.877 mol
Change in temperature = 15.7 K
First we have to calculate the heat absorbed by the system.
Formula used :
where,
q = heat absorbed by the system = ?
n = moles of sample = 0.877 mol
= Change in temperature = 15.7 K
= heat capacity at constant volume of
(diatomic molecule) =
R = gas constant = 8.314 J/mol.K
Now put all the given value in the above formula, we get:
Now we have to calculate the change in internal energy of the system.
As we know that, work done is zero at constant volume. So,
Therefore, the value of is 286.2 J and 286.2 J respectively.