List of practice Questions

Chlorobenzene is prepared commercially by:

Turkish bath sponge is

The time period of a simple pendulum at the centre of the earth is

The source of $ {{O}_{2}} $ liberated in photo-synthesis is:

The intensity of radiation emitted by the sun has its maximum value at a wavelength of 510 nm and that emitted by the North Star has the maximum value at 350 nm. If these stars behave like black bodies, then the ratio of the surface temperature of the sun and north star is:

The head of the epididymis at the head of the testis is called

The equations of two waves acting in perpendicular directions are given as$x=a \cos(\omega t+\delta)$ and $y=a \cos(\omega t+\alpha),$ where $\delta=\alpha+\frac{\pi}{2}, $ the resultant wave represents

Ratio of intensities of two waves is $9 : 1$. If these two are superimposed, what is the ratio of maximum and minimum intensities?

Philosopher�s wool when heated with $BaO$ at $1100^{\circ}C$ gives a compound. Identify the compound.

Outermost covering of brain is called as:

Nucleolus is the site for synthesis of

Nitrogen and oxygen exist as diatomic but their cogeners are $P _{4}$ and $S _{8}$ respectively. This is due to

Guayule rubber comes from :

Which of the following plants is generally described as a living fossil ?

Monochromatic light is refracted from air into the glass of refractive index $ \mu $ . The ratio of the wavelength of incident and refracted waves is:

Meiosis involves

Lymph differs from blood in having

Liquid food drinking is

Largest ecosystem of the world are:

Which of the following is not polyamide?

Joule Thomson expansion is:

The powerful explosive $RDX$ is formed during the nitration of:

Which of the following is the correct relation of the first law of thermodynamics?

Father of plant anatomy is

If applied torque on a system is zero, i.e., $ \tau =0 $ , then for that system: