Recent questions tagged 168

Which of the statements given below is not true about formation of Annual Rings in trees?

asked Jul 8, 2019 by pady_1

1 answer

The eccentricity of ellipse $9x^2 + 4y^2 = 36$ is :

asked Dec 19, 2018 by pady_1

0 answers

If $x \neq 0$ and $\begin{vmatrix}1 & x & 2x \\ 1 & 3x & 5x \\ 1 & 3 & 4 \end{vmatrix}=0$, then $x$ is equal to :

asked Dec 19, 2018 by pady_1

0 answers

If $3+i$ is a root of $x^2+ax+b=0$, then $a$ is equal to :

asked Dec 19, 2018 by pady_1

0 answers

If $y = A \cos nx + B \sin nx$, then $y_2 = n^2y$ is equal to :

asked Dec 11, 2018 by pady_1

0 answers

$\begin{align} \int_0^{10 \pi} | \sin x |\; dx \end{align}$ is

asked Dec 11, 2018 by pady_1

0 answers

Let $f(x)$ be a polynomial function of second degree. If $f(1) = f(-1)$ and $a, \; b, \; c$ are in AP, then $f'(a), \; f'(b)$ and $f'(c)$ are in :

asked Dec 11, 2018 by pady_1

0 answers

A satellite of mass $m$ revolves around the earth of radius $R$ at a height $x$ from its surface. If $g$ is the acceleration due to gravity on the surface of the earth, the orbital speed of the satellite is

asked Nov 5, 2018 by pady_1

0 answers

Which of the following gastric cells indirectly help in erythropoiesis ?

asked Aug 21, 2018 by pady_1

2 answers

Figure shows a circuit that contains three identical resistors with resistance R = 9.0 $\Omega$ each, two identical inductors with inductance L = 2.0 mH each, and an ideal battery with emf $\varepsilon$ = 18 V. The current 'I' through the battery just after the switch closed is,â€¦â€¦.. <br>

asked Aug 21, 2018 by pady_1

1 answer

Two identical charged spheres suspended from a common point by two massless strings of length l, are initially at a distance $d\; (d << l)$ apart because of their mutual repulsion. The charges begin to leak from both the spheres at a constant rate. As a result, the spheres approach each other with a velocity v. Then v varies as a function of the distance x between the spheres, as :

asked Aug 21, 2018 by pady_1

2 answers

On a frictionless surface, a block of mass $M$ moving at speed v collides elastically with another block of same mass M which is initially at rest. After collision the first block moves at an angle θ to its initial direction and has a speed $\frac{v}{3}$. The second block‘s speed after the collision is :

asked Aug 21, 2018 by pady_1

1 answer

Select the correct option : <br>

asked Aug 20, 2018 by pady_1

1 answer

The diagram shows an important concept in the genetic implication of DNA. Fill in the blanks A to C. <br>

asked Aug 20, 2018 by pady_1

1 answer

The human hind brain comprises three parts, one of which is

asked Aug 20, 2018 by pady_1

1 answer

Which one of the following is not a part of a renal pyramid ?

asked Aug 16, 2018 by pady_1

1 answer

Which one of the following statements about all the four of Spongilla, Leech, Dolphin and Penguin is correct –

asked Jul 26, 2018 by pady_1

2 answers

A change in the amount of yolk and its distribution in the egg will effect :

asked Jul 26, 2018 by pady_1

1 answer

According to Central Pollution Control Board (CPCB), which particulate size in diameter (in micrometers) of the air pollutants is responsible for greatest harm to human health?

asked Jul 26, 2018 by pady_1

1 answer

Which one of the following is not a bioindicator of water pollution ?

asked Jul 26, 2018 by pady_1

1 answer

In Mendel's experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the F2 generation of the cross RRYY × rryy ?

asked Jul 25, 2018 by pady_1

1 answer

Photosynthesis in $C_4$ plants is relatively less limited by atmospheric $CO_2$ levels because

asked Jul 24, 2018 by pady_1

1 answer

Which one of the following pair's correctly matches a hormone with a disease resulting from its deficiency :-

asked Jul 24, 2018 by pady_1

1 answer

Plants deficient of element zinc, show its effect on the biosynthesis of plant growth hormone-

asked Jul 24, 2018 by pady_1

2 answers

What is true for cleavage : -

asked Jul 23, 2018 by pady_1

1 answer

Spoilage of oil can be detected by which fatty acid : -

asked Jul 20, 2018 by pady_1

1 answer

Which statement is correct :

asked Jul 20, 2018 by pady_1

1 answer

Histamine secreted by :

asked Jun 15, 2018 by pady_1

1 answer

Vince bought 0.95 kilograms of apples and 0.51 kilograms of oranges. How much fruit did he buy in all?

asked Dec 31, 2015 by pady_1

1 answer

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