Physics

The spectrum of H-atom is formulated and drawn by Bohr's model. These spectrums are line spectrum. Lyman series lies in UV region, Balmer Partly lies UV and partly in the visible region and Paschen series lies in the infrared region.

In intrinsic semiconductors, conductivity is mainly due to breakage of covalent bonds in extrinsic semiconductors, the conductivity is due to the addition of impurities.

On repetitive use of NAND GATE or NOR gate, any logic GATE can be prepared.

Unit of temperature is Fahrenheit

Unit of mass is atomic mass of unit

Unit of length is light year

Unit of time is shake

In a measurement, a choice of change of different units does not change the number of significant figures.

Frequency in the stretched wire is

$f=\frac{1}{2l}\sqrt[]{\frac{T}{\mu }}$

$f_1^2=\frac{T_1}{4\mu l^2}$

$f_2^2=\frac{T_2}{4\mu l^2}$

$\frac{T_1+T_2}{4\mu l^2}=f^2$

$f^2=f_1^2+f_1^2$

$f=\sqrt[]{{\left(80\right)}^2+{\left(150\right)}^2}=170Hz$

Given beat frequency

$\left|X-95\right|=5$

$and\left|3X-290\right|=10$

$?X=100Hz$

Torque on a bar magnet in external uniform magnetic field is

$\stackrel{?}{\tau }=\stackrel{?}{M}*\stackrel{?}{B}$

$\stackrel{?}{\tau }=NIAB\sin ?{90}^0$

$=500*2*50*{10}^{-4}*2*{10}^{-3}$

$=0.01Nm$

Interference is the result of the superposition of waves.