Recent questions tagged jeemain

If $\sin x+\sin^2x=1$ then $\cos^8x+2\cos^6x+\cos^4x$ is equal to

asked Oct 8, 2013 by sreemathi.v

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If $\sin x+\sin^2x=1$ then value of $\cos^2x+\cos^4x$ is equal to

asked Oct 8, 2013 by sreemathi.v

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$\cos 2^3\large\frac{\pi}{10}$$\cos 2^4\large\frac{\pi}{10}$$\cos 2^5\large\frac{\pi}{10}........$$\cos 2^{10}\large\frac{\pi}{10}$ is equal to

asked Oct 8, 2013 by sreemathi.v

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Identify the correct pair

asked Oct 7, 2013 by thanvigandhi_1

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Wax glands in honey bees are present on these segment

asked Oct 7, 2013 by thanvigandhi_1

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Statements (S) : Non-disjunction is the failure of paired chromosomes to segregate during the metaphase of meiotic divisions of gametogenesis. Reasons (R) : Non-disjunction results in production of abnormal gametes

asked Oct 7, 2013 by thanvigandhi_1

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Statements (S) : After implantation, the uterine myometrium undergoes changes to become 'decidua' in Rabbit. Reasons (R) : The placenta of Rabbit is described as deciduous type.

asked Oct 7, 2013 by thanvigandhi_1

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Identify the organisms that belong to the benthos of lake ecosystem

asked Oct 7, 2013 by thanvigandhi_1

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In ECG a prolonged PR interval indicates

asked Oct 7, 2013 by thanvigandhi_1

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Which of the following hormone regulate solute reabsorption during urine formation in Rabbit?

asked Oct 7, 2013 by thanvigandhi_1

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Choose the wrong statement with reference to mutation theory :

asked Oct 7, 2013 by thanvigandhi_1

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Two wires of different materials are used to hang a rod horizontally tied from two ends of the rod of length $2m$. At what distance should a weight be hung on the rod from Wire-1 so that equal stresses are produced on both the wires. Wire 1: cross -sectional area $= 10^{-3}m^{2}$. Young's modulus $= 2 \times 10^{11} N/m^2$ Wire 2 : cross -sectional area $= 2 \times 10^{-3} m^{2}$. Young's modulus $= 1 \times 10^{11} N/m^2$

asked Oct 7, 2013 by meena.p

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$\sin\large\frac{9\pi}{14}$$\sin\large\frac{11\pi}{14}$$\sin\large\frac{13\pi}{14}$ is equal to

asked Oct 7, 2013 by sreemathi.v

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Two lines drawn through a point on the circumference of a circle divided the circle into three regions of equal area.Then the angle $\theta$ between the line is given by

asked Oct 7, 2013 by sreemathi.v

1 answer

A object of mass $5.0\;g$ is projected into air using a rubber string of cross sectional area of $1;mm^2$. The length of the chord when it was unstretched is 10.0 cm. It is then stretched to 12 cm to project the object . The young's modulus of rubber is $5.0 \times 10^8 n/m^2$. The velocity of projectile is (assuming all the energy of string is transferred to projectile)

asked Oct 7, 2013 by meena.p

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The angle between minute hand and hour hand of a clock at "half past 4" equals

asked Oct 7, 2013 by sreemathi.v

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If $a\sin\theta+5\cos\theta=5$ then the value of $5\sin\theta-3\cos\theta$ is equal to

asked Oct 7, 2013 by sreemathi.v

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A highly rigid cubical block A of small mass M and side L is fixed rigidly to another cubical block B of the same dimensions and modulus of rigidity $\eta$ Such that the lower face of A completely covers the upper face of B. The lower face of B is rigidly held on horizontal surface. A small force is applied perpendicular to one of the side face of A. After the force is withdrawn block A executes small oscillations the time period of which is given by

asked Oct 7, 2013 by meena.p

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If $\rho$ is density of the material of a wire and $\sigma$ is the breaking stress. The greatest length of wire that can hang freely without breaking is

asked Oct 7, 2013 by meena.p

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If $A=\cos^2\theta+\sin^4\theta$ then for all value of $\theta$

asked Oct 7, 2013 by sreemathi.v

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If $\large\frac{1+\sin 2x}{1-\sin 2x}$$=\cot^2(a+x)$ $\forall x\in R\sim \big(n\pi+\large\frac{\pi}{4}\big)$$ n\in N$ then $'a'$ is equal to

asked Oct 7, 2013 by sreemathi.v

1 answer

Siphon is a device to transfer liquid from a higher level to lower level. The condition of working of siphon is

asked Oct 7, 2013 by meena.p

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If $\sin x+\sin^2 x=1$ then the value of $\cos^2x+3\cos^{10}x+3\cos^8 x+\cos^6x$ is equal to

asked Oct 7, 2013 by sreemathi.v

1 answer

If $\cos x=\large\frac{2\cos y-1}{2-\cos y}$ where $x,y\in (0,\pi)$ then $\tan\large\frac{x}{2}$$.\cot\large\frac{y}{2}$ is equal to

asked Oct 7, 2013 by sreemathi.v

1 answer

If the ratio of lengths , radii and Young's modulli of two wires in the figure shown are 2,4, and 1 respectively. Then the corresponding ratio of increase in their length will be

asked Oct 7, 2013 by meena.p

1 answer

If $A+B=\large\frac{\pi}{3}$ where $A,B\in R^+$ then the minimum value of $\sec A+\sec B$ is equal to

asked Oct 7, 2013 by sreemathi.v

1 answer

The numerical value of $\tan 20^{\circ}\tan 80^{\circ}\cot 50^{\circ}$ is equal to

asked Oct 7, 2013 by sreemathi.v

1 answer

In the arrangement shown in figure $\large\frac{m_A}{m_B}=\frac{2}{3}$ and ratio of density of block B and of the liquid is $2:1$ The system is released from resat. Then

asked Oct 7, 2013 by meena.p

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If $\alpha+\beta+\gamma=\pi$ then the value of $\sin^2\alpha+\sin^2\beta-\sin^2\gamma$ is equal to

asked Oct 7, 2013 by sreemathi.v

1 answer

The maximum value of $\sin(\cos x)$ is equal to

asked Oct 7, 2013 by sreemathi.v

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If in a $\Delta ABC$ $\angle C=90^{\circ}$ then the maximum value of $\sin A\sin B$ is

asked Oct 7, 2013 by sreemathi.v

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The maximum value of $4\sin^2x+3\cos^2x+\sin\large\frac{x}{2}$$+\cos\large\frac{x}{2}$ is

asked Oct 7, 2013 by sreemathi.v

1 answer

In $\sin x=-\cos^2x$ then $\cos^2x(1+\cos^2x)$ equals

asked Oct 7, 2013 by sreemathi.v

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The minimum value of $\cos(\cos x)$ is

asked Oct 7, 2013 by sreemathi.v

1 answer

The maximum and minimum values of $7\cos\theta+24\sin\theta$ are equal to

asked Oct 7, 2013 by sreemathi.v

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Identify the tumour suppressor genes from the following :

asked Oct 6, 2013 by thanvigandhi_1

1 answer

Of the following statements about 'antibodies' and 'antigens' choose the correct set,

asked Oct 6, 2013 by thanvigandhi_1

1 answer

Match the following

asked Oct 6, 2013 by thanvigandhi_1

1 answer

Identify the two small apertures present in the auditory capsule of rabbit

asked Oct 6, 2013 by thanvigandhi_1

1 answer

In birds, Foramen triosseum is present at the junction of

asked Oct 6, 2013 by thanvigandhi_1

2 answers

Match the following

asked Oct 6, 2013 by thanvigandhi_1

1 answer

Identify the correct sequence of events with reference to Conjugation of Vorticella

asked Oct 6, 2013 by thanvigandhi_1

1 answer

What is the duration of one cardiac cycle in man when the heart beats for 75 times per minute?

asked Oct 6, 2013 by thanvigandhi_1

1 answer

Match the following

asked Oct 6, 2013 by thanvigandhi_1

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Match the correct pairs in List-I and List-II with reference to Pheretima

asked Oct 6, 2013 by thanvigandhi_1

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In Eukaryotes, which of the following genes synthetize heterogenous nuclear RNA (hn RNA)?

asked Oct 6, 2013 by thanvigandhi_1

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Arrange the following in the ascending order of their number per cubic millimeter present in the blood

asked Oct 6, 2013 by thanvigandhi_1

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Statement (S) : In gastropods, due to torsion mantle cavity is placed anteriorly behind and above the head. Reason (R) : During larval stage, visceral mass, shell and mantle cavity are twisted upto $180^{\circ}$ counter clockwise with respect to the head and foot.

asked Oct 6, 2013 by thanvigandhi_1

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In the transverse section of Pheretima, identify the correct sequence of body wall layers from outer to inner side

asked Oct 5, 2013 by thanvigandhi_1

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The part of Adrenal cortex which secretes cortisol is

asked Oct 5, 2013 by thanvigandhi_1

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