Recent questions tagged 145

Pinus seed cannot germinate and establish without fungal association. This is because :

asked Jul 8, 2019 by pady_1

1 answer

If $\tan y = \frac{2t}{1-t^2}, \; sin x = \frac{2t}{1+t^2}$, then $\frac{dy}{dx}$ is equal to :

asked Dec 19, 2018 by pady_1

0 answers

If the area of parallelogram, whose adjacent sides are $3 \hat{i} + 4 \hat{j}-\lambda \hat{k}$ and $2\hat{j} - 4 \hat{k}$ is $\sqrt{436}$ sq unit and $\lambda=0$, then $\lambda$ is equal to :

asked Dec 19, 2018 by pady_1

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$(\overrightarrow{b} \times \overrightarrow{c} ) \times (\overrightarrow{c} \times \overrightarrow{a} )$ is equal to:

asked Dec 19, 2018 by pady_1

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The equation of tangent to the curve $6y = 7 - x^3$ at $(1,1)$ is :

asked Dec 11, 2018 by pady_1

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Select correct statement :

asked Dec 11, 2018 by pady_1

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Ethyl isocyanide on hydrolysis in acidic medium generates :

asked Dec 11, 2018 by pady_1

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The differential equation whose solution is $Ax^2 + By^2 = 1$, where $A$ and $B$ are arbitrary constant, is of :

asked Nov 13, 2018 by pady_1

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Reaction of cyclohexanone with dimethlamine in the presence of catalic amount of an acid forms a compound. Water during the reaction is continuously removed. The compound formed is generally known as :

asked Nov 5, 2018 by pady_1

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Which one of the following reduced with zinc and hydrochloric acid to give the corresponding hydrocarbon ?

asked Nov 5, 2018 by pady_1

0 answers

In which disease does mosquito transmitted pathogen cause chronic inflammation of lymphatic vessels ?

asked Aug 21, 2018 by pady_1

1 answer

Two astronauts are floating in gravitational free space after having lost contact with their spaceship. The two will :

asked Aug 21, 2018 by pady_1

1 answer

The intensity at the maximum in a Young’s double slit experiment is $I_0$. Distance between two slits is $d = 5 \lambda$, where $\lambda$ is the wavelength of light used in the experiment. What will be the intensity in front of one of the slits on the screen placed at a distance $D = 10 \;d$ ?

asked Aug 21, 2018 by pady_1

1 answer

An automobile moves on a road with a speed of $54\; km\; h^{–1}$. The radius of its wheels is $0.45 \;m$ and the moment of inertia of the wheel about its axis of rotation is $3\; kg \;m^2$. If thevehicle is brought to rest in $15s$, the magnitude of average torque transmitted by its brakes to the wheel is :

asked Aug 21, 2018 by pady_1

1 answer

Which one of the following is a non-reducing carbohydrate?

asked Aug 20, 2018 by pady_1

1 answer

The essential chemical components of many coenzymes are

asked Aug 20, 2018 by pady_1

1 answer

A nitrogen - fixing microbe associated with Azolla in rice fields is

asked Aug 20, 2018 by pady_1

2 answers

Which of the following is mainly produced by the activity of anaerobic bacteria on sewage ?

asked Aug 16, 2018 by pady_1

1 answer

Which one of the following statements is correct with respect to AIDS ?

asked Jul 26, 2018 by pady_1

1 answer

Uric acid is the chief nitrogenous component of the excretory products of -

asked Jul 26, 2018 by pady_1

1 answer

Which one of the following is NOT a characteristic of phylum Annelida?

asked Jul 26, 2018 by pady_1

1 answer

In the leaves of $C_4$ plants, malic acid formation during $CO_2$ fixation occurs in the cells of :

asked Jul 26, 2018 by pady_1

1 answer

Curing of tea leaves is brought about by the activity of-

asked Jul 25, 2018 by pady_1

1 answer

Top-shaped multiciliate male gametes, and the mature seed which bears only one embryo with two cotyledons, are characteristic features of -

asked Jul 24, 2018 by pady_1

1 answer

The following ratio is generally constant for a given species :-

asked Jul 24, 2018 by pady_1

1 answer

Which one of the following traits of garden pea studied by Mendel was a recessive feature : -

asked Jul 24, 2018 by pady_1

0 answers

In protozoa like Amoeba and Paramecium, a organ is found for osmoregulation which is : -

asked Jul 23, 2018 by pady_1

1 answer

What is sarcomere : -

asked Jul 20, 2018 by pady_1

1 answer

Characteristic of simple epithelium is :

asked Jul 20, 2018 by pady_1

1 answer

If CO2 is absent in atmosphere of earth then :

asked Jun 15, 2018 by pady_1

1 answer

Divide: 191.5 $\div$ 5

asked Dec 31, 2015 by pady_1

0 answers

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