Match List I with List II
LIST I | LIST II | ||
---|---|---|---|
A. | Spring constant | I. | $$\mathrm{[T^{-1}]}$$ |
B. | Angular speed | II. | $$\mathrm{[MT^{-2}]}$$ |
C. | Angular momentum | III. | $$\mathrm{[ML^2]}$$ |
D. | Moment of inertia | IV. | $$\mathrm{[ML^2T^{-1}]}$$ |
Choose the correct answer from the options given below:
Given below are two statements: one is labelled as Assertion $$\mathbf{A}$$ and the other is labelled as Reason $$\mathbf{R}$$
Assertion A : EM waves used for optical communication have longer wavelengths than that of microwave, employed in Radar technology.
Reason R : Infrared EM waves are more energetic than microwaves, (used in Radar)
In the light of given statements, choose the correct answer from the options given below.
In an n-p-n common emitter (CE) transistor the collector current changes from 5 $$\mathrm{mA}$$ to $$16 \mathrm{~mA}$$ for the change in base current from $$100~ \mu \mathrm{A}$$ and $$200 ~\mu \mathrm{A}$$, respectively. The current gain of transistor is __________.
The ratio of escape velocity of a planet to the escape velocity of earth will be:-
Given: Mass of the planet is 16 times mass of earth and radius of the planet is 4 times the radius of earth.