MHT CET 2019 2nd May Evening Shift | MHT CET Year Wise Previous Years Questions

The maximum wavelength of radiation emitted by a star is 289.8 nm . Then intensity of radiation for the star is (Given : Stefan's constant $=5.67 \times 10^{-8} \mathrm{Wm}^{-2} \mathrm{~K}^{-4}$, Wien's constant, $b=2898 \mu \mathrm{mK}$ )

$5.67 \times 10^{-12} \mathrm{Wm}^{-2}$

$10.67 \times 10^{14} \mathrm{Wm}^{-2}$

$5.67 \times 10^8 \mathrm{Wm}^{-2}$

$10.67 \times 10^7 \mathrm{Wm}^{-2}$

MHT CET 2019 2nd May Evening Shift

MCQ (Single Correct Answer)

-0

A lift is tied with thick iron ropes having mass ' $M$ '. The maximum acceleration of the lift is ' $a$ ' $\mathrm{m} / \mathrm{s}^2$ and maximum safe stress is ' S ' $\mathrm{N} / \mathrm{m}^2$. The minimum diameter of the rope is

$\left[\frac{6 M(g+a)}{\pi S}\right]^{\frac{1}{2}}$

$\left[\frac{4 M(g+a)}{\pi S}\right]^{\frac{1}{2}}$

$\left[\frac{M(g+a)}{\pi S}\right]^{\frac{1}{2}}$

$\left[\frac{M(g-a)}{\pi S}\right]^{\frac{1}{2}}$

MHT CET 2019 2nd May Evening Shift

MCQ (Single Correct Answer)

-0

In Balmer series, wavelength of first line is ' $\lambda_1$ ' and in Brackett series wavelength of first line is ' $\lambda_2$ ' then $\frac{\lambda_1}{\lambda_2}$ is

0.162

0.124

0.138

0.188

PREVIOUS NEXT