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:
(Microwave to $UV$)
So,$EM$ waves used for optical communication have shorter wavelength than that of microwaves used in $RADAR.$
Also, $v_{\text {INFRARED }}>v_{\text {MICROWAVE }}$
$\therefore$ Infrared $EM$ waves are more energetic than microwave
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|
${{V}_{g}}$(volt) |
$0$ |
$- 2$ |
$- 4$ |
$- 6$ |
|
${{I}_{p}}(mA)$ for ${{V}_{p}}=150volts$ |
$ 15$ |
$12.5$ |
$10$ |
$7.5$ |
|
${{I}_{p}}(mA)$ for ${{V}_{p}}=120volts$ |
$10$ |
$7.5$ |
$5$ |
$2.5$ |
$U = ax^2 - bx$
Where $a$ and $b$ are positive constants. The law of the force governing the system is
