Newton-second is the unit of

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(C) The unit of force is $Newton$ $(N)$ and the unit of time is $second$ $(s)$.Impulse is defined as the product of force and time,given by $J = F 	i

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Momentum

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(C) The unit of force is $Newton$ $(N)$ and the unit of time is $second$ $(s)$.Impulse is defined as the product of force and time,given by $J = F 	imes \Delta t$.The $SI$ unit of impulse is $N \cdot s$.According to the impulse-momentum theorem,impulse is equal to the change in linear momentum $(\Delta p = F 	imes \Delta t)$.Therefore,the unit of momentum is also $Newton-second$ $(N \cdot s)$.

List-$I$	List-$II$
$(A)$ Distance between earth and stars	$(1)$ Microns
$(B)$ Inter-atomic distance in a solid	$(2)$ $\mathring{A}$s
$(C)$ Size of the nucleus	$(3)$ Light years
$(D)$ Wavelength of infrared laser	$(4)$ Fermi

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