List of practice Questions

The dimension of mutual inductance is (Denote dimension of current as A)
The diagram represents the L.S. of monocot seed. Find out the correct combination of labelling
The diagram represents the reproductive organs of male cockroach. Choose the correct combination of labelling.
The dielectric constant of air is $ 1.006 $ . The speed of electromagnetic wave travelling in air is $ a\times {{10}^{8}}m{{s}^{-1}}, $ where a is about
The depletion layer of a $ p-n $ junction:
Three moles of an ideal gas are in a rigid cubical box with sides of length $0.170 \,m$. The ratio of the forces that the gas exerts on each of the six sides of the box when the gas temperature are $27^{\circ}C$ and $127^{\circ}C$ is,
If a monoatomic gas is compressed adiabatically to $(1/27)$th of its initial volume, then its pressure becomes
The decreasing order of acidic character among ethane $(I)$, ethene $(II)$, ethyne $(III)$ and propyne $(IV)$ is
The density of kerosene is $800 \,kg \,m^{-3}$. Its relative density is
The cytokine barrier among these is
The de-Broglie wavelength and kinetic energy of a particle is $2000 \,?$ and $1\, eV$ respectively. If its kinetic energy becomes $1\, MeV$, then its de Broglie wavelength
The correct order of decreasing electronegativity values among the elements $I-beryllium, II-oxygen, III-nitrogen$ and $IV-magnesium$, is
The crystal with metal deficiency defect is
The condition where urea accumulates in blood is:
The change in potential energy when a body of mass $ m $ is raised to a height $ nR $ from earths surface is (R = radius of the earth)
The chromosomal number in the meiocytes of housefly is:
The collector supply voltage is $6 \,V$ and the voltage drop across a resistor of $ 600\,\Omega $ . in the collector circuit is $0.6 \,V$, in a transistor connected in common emitter mode. If the current gain is $20$, the base current is
The catalytic activity of the transition metals and their compounds is ascribed to:
The cavities of alveoli of lungs are lined by
The cell organelle associated with intracellular digestion of macromolecules is
The brain capacity of Homo erectus was about:
The behaviour of the chromosomes was parallel to the behaviour of genes during meiosis was noted by
The average quantity of urea excreted in urine by man per day is:
The back flow of faecal matter in the large intestine is prevented by the presence of:
The average depth of Indian ocean is about $3000\, m$. The fractional compression, $ \frac{\Delta V}{V} $ of water at the bottom of the ocean (given that the bulk modulus of the water $ =2.2\times {{10}^{2}}N{{m}^{-2}} $ and $ g=10m{{s}^{-2}} $ ) is