List of practice Questions

In the diagram of the reproductive system of Earthworm $a, b, c, d$ and e represents:

In the amplitude modulation mode of transmission, the normal speed signal is with a maximum frequency of $5\, kHz$. If the carrier frequency is $200\, kHz$, the modulated signal will have the frequencies varying between

In $NH_3$ synthesis by Haber?s process, what is the effect on the rate of the reaction with the addition of Mo and CO, respectively?

In one dimension, the angle between velocity vector and acceleration vector of an object is

In one plant, underground stems are modified to store food and in another plant,the stem tendrils develop from axillary buds to help plants climb. They are

In man, Glisson?s capsule is associated with the

In Morgan's experiments on linkage, the percentage of white eyed, miniature winged recombinants in F generation is

In autogenic succession

In Hershey and Chase experiments, radioactive $^{32}P$ was used to culture bacteriophages which resulted in radioactive:

In a pyramid of numbers, in a grassland ecosystem, the largest population is that of

In a photoelectric experiment, if both the intensity and frequency of the incident light are doubled, then the saturation photoelectric current

If the radius of the earth suddenly decreases by half of its present value. Then the time duration of one day will be

If the angular momentum of a particle of mass $m$ rotating along a circular path of radius $r$ with uniform speed is $L$, the centripetal force acting on the particle is

The vectors of magnitude $a, 2a, 3a $ meet at a point and their directions are along the diagonals of three adjacent faces of a cube. Then, the magnitude of their resultant is

If a straight line makes angles $\alpha , \beta , \gamma $ with the coordinate axes, then $\frac{1-\tan^{2} \alpha }{1+tan^{2} \alpha} +\frac{1}{sec 2 \beta} -2\sin^{2} \gamma =$

If the produce of five consecutive terms of a $G.P.$ is $\frac{243}{32}$ , then the middle term is

If the roots of the quadratic equation $mx^2 - nx + k = 0$ are tan $33^{\circ}$ and $\tan\, 12^{\circ}$ then the value of $\frac{2m+n+k}{m}$ is equal to

If $ \frac{5{{z}_{2}}}{11{{z}_{1}}} $ is purely imaginary, then the value of $ \left[ \frac{2{{z}_{1}}+3{{z}_{2}}}{2{{z}_{1}}-3{{z}_{2}}} \right] $ is

Identify the correct match between types of chromosomes and their descriptions.

I.$\quad$ Unicellular, colonial, filamentous, marine or terrestrial forms II. $\quad$The colonies are surrounded by a gelatinous sheath III.$\quad$ Some can fix atmospheric nitrogen in specialised cells called$\quad$$\quad$ $\quad$$\quad$heterocysts IV. $\quad$They often form blooms in water bodies These above characters are seen in

Hypothalamus does not control

How many peroxy linkages are present in $CrO_5$ ?

Histones are rich in

Gliding joint is present between the

Glutaric acid is