List of practice Questions

LetC be the circle with centre (0, 0)and radius 3 units. The equation of the locus of the mid points of the chords of the circle C that subtend an angle of $\frac{2 \pi}{3}$ at its centre, is :

Largest muscle of the body is

Larger nucleus in a pollen grain is

Kattha is obtained from the heart wood of:

In human beings placenta is formed by:

In humans digestion of food is completed in the

In $Fe(CO)_5$ > the Fe?? bond possesses :

In $[Ag(CN)_2]^-$ , the number of $\pi$ bonds is

In an AC generator, a coil with $N$ turns, all of the same area $A$ and total resistance $R$, rotates with frequency $\omega$ in a magnetic field $B$. The maximum value of emf generated in the coil is:

In a colony of honey bee family there are

If the terminal speed of a sphere of gold (density $= 19.5 kg/m^3$) is $0.2\, m/s$ in a viscous liquid (density $= 1.5\, kg/m^3$), find the terminal speed of a sphere of silver (density $= 10.5\, kg/m^3$) of the same size in the same liquid.

If the expansion in powers of $x$ of the function $\frac{1}{\left(1-ax\right)\left(1-bx\right)}$ is $a_{0}+a_{1}x+a_{2}x^{2}+a_{3}x^{3}+ ..... ,$ then $a_n$ is :

If $ \sigma $ = surface charge density, $ \varepsilon $ = electric permittivity the dimensions of $ \frac{ \sigma}{ \varepsilon } $ are same as

If L is the coherence length and c the velocity of light, the coherent time is

If a ray of light is incident on an equilateral glass prism PQR placed on a horizontal table, then for the minimum deviation which of the following is true?

Human female possess $ 44+XX $ chromosomes. The secondary oocyte shall have:

How many ATPs are produced during glycolysis of one molecule of glucose?

HBr reacts with $CH_2=CH??CH_3$ under anhydrous conditions at room temperature to give :

Given below is a circuit diagram of an $AM$ demodulator.

For good demodulation of $AM$ signal of carrier frequency $f$, the value of $R C$ should be :

For a spontaneous process the correct statement is

For a wire of length $l$ , maximum change in length under stress condition is $2 \,mm$. What is the charge in length under same conditions when length of wire is halved?

Food in plants is translocated in the form of

Flash light equipped with a new set of batteries, produces bright white light. As the batteries wear out,

Eutrophication of water bodies leading to killing of fishes is mainly due to non-availability of

Distance between successive compression and rarefaction is $1 \,m$ and velocity of sound is $360 \,ms^{-1}$. Find frequency :