List of practice Questions

Stachyose is a

Study the pedigree chart given below. What does it show?

T.O. Diener discovered a

Polyethylene glycol method is used for

Power dissipated in an $LCR$ series circuit connected to an a.c. source of emf $\varepsilon$ is :

Steps taken by the Government of India to control air pollution include

The number of photo electrons emitted for light of a frequency $\upsilon$ (higher than the threshold frequency $v_0) $ is proportional to

Among the following which is the strongest oxidising agent?

Cytoskeleton is made up of

In the nuclear decay given below $^A_Z X \rightarrow \, ^A _{Z+1} Y \rightarrow \, ^{A-A}_{Z-1}B * \, \rightarrow \, ^{A-A}_{Z-1}B,$ the particles emitted in the sequence are

$ \int\left[sin \left(log\,x\right)+cos\left(log\,x\right)\right]dx $ is equal to

Two identical light waves, propagating in the same direction, have a phase difference $\delta$. After they superpose the intensity of the resulting wave will be proportional to

The half-life of a radioactive element is 10 hours. How much will be left after 4 hours in 1 g atom sample?

Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem ?

Which one of the following is monoecious?

Which one of the following is considered important in the development of seed habit?

A fruit developed from hypanthodium inflorescence is called

Which one of the following is a vascular cryptogam ?

Which one of the following has haplontic life cycle?

The sum of the series $ \left( 1+\frac{{{({{\log }_{e}}\,n)}^{2}}}{2!}+\frac{{{({{\log }_{e}}n)}^{4}}}{4!}+... \right) $ is

If $ {{\tan }^{-1}}\,2 $ and $ {{\tan }^{-1}}\,3 $ are two angles of a triangle, then the third angle is

The image of the point $ (6,3,9) $ in the straight line $ x-2=\frac{1-y}{2}=\frac{z}{2} $ is

The term independent of $x$ in the expansion of $ {{\left( \sqrt{\frac{x}{3}}+\frac{3}{2{{x}^{2}}} \right)}^{10}} $ is

The number of ways in which $5$ boys and $5$ girls can be seated for a photograph so that no two girls sit next to each other is

If $ {{x}_{1}},{{x}_{2}},......{{x}_{18}} $ are observations such, that $ \sum\limits_{j=1}^{18}{({{x}_{j}}-8)=9} $ and $ \sum\limits_{j=1}^{18}{{{({{x}_{j}}-8)}^{2}}=45,} $ then the standard deviation of these observations is