Question
$X-$ rays are produced in $X-$ ray tube operating at a given accelerating voltage. The wavelength of the continuous $X-$ rays has values from
All wavelengths $>\lambda_{\min }$ are found, where
$\lambda_{\min }=\frac{12375}{V(\text {involt})} A$
Here $V$ is the applied voltage
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Statement$-I :$ An elevator can go up or down with uniform speed when its weight is balanced with the tension of its cable.
Statement$-II :$ Force exerted by the floor of an elevator on the foot of a person standing on it is more than his/her weight when the elevator goes down with increasing speed.
In the light of the above statements, choose the correct answer from the options given below :

