Recent questions tagged ch2

Regarding viruses, which of the following is incorrect?

asked Jan 3, 2014 by pady_1

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Acellular organisms are:

asked Jan 3, 2014 by pady_1

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Regarding nutrition in Kingdom Animalia:

asked Jan 3, 2014 by pady_1

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Plantae includes:

asked Jan 3, 2014 by pady_1

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Regarding Asexual spores: 1. Deuteromycetes - generally not found 2. Basidiomycetes- reproduce only by asexual spores

asked Jan 3, 2014 by pady_1

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Choose the odd one out:

asked Jan 3, 2014 by pady_1

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Choose the odd one out:

asked Jan 3, 2014 by pady_1

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Choose the odd one out:

asked Jan 3, 2014 by pady_1

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Choose the odd one out:

asked Jan 3, 2014 by pady_1

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Choose the odd one out:

asked Jan 3, 2014 by pady_1

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Choose the odd one out:

asked Jan 3, 2014 by pady_1

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Regarding nutrition in Fungi - choose the incorrect one:

asked Jan 3, 2014 by pady_1

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Choose the odd one out:

asked Jan 3, 2014 by pady_1

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Identify the wrongly matched:

asked Jan 3, 2014 by pady_1

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Regarding Chrysophytes which of the following is not a feature:

asked Jan 3, 2014 by pady_1

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Under unfavourable condition Bacteria reproduction is by:

asked Jan 3, 2014 by pady_1

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Regarding Mycoplasma choose the incorrect statement:

asked Jan 3, 2014 by pady_1

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Of the following which is not a type of Bacteria reproduction:

asked Jan 3, 2014 by pady_1

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Regarding cyanobacteria choose the right statement:

asked Jan 3, 2014 by pady_1

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Assertion (A) : Biogas is produced from the dung of cows and buffaloes Reason (R) : Methanogens are present in the gut of ruminant animals and they are responsible for the production of methane from their dung. Regarding (A) and (R)

asked Jan 3, 2014 by pady_1

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To obtain $6 \mu F $ capacity from $3$ capacitors of $4 \mu F$ each, they will be arranged as :

asked Jan 3, 2014 by meena.p

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The electric potential as a function of distance x is given by $ V= (-5x ^2-10 x +9) \;volt$ . The electric field at point $(1,2)$ is

asked Jan 3, 2014 by meena.p

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A $0.4 \mu F$ capacitor is charged to $1200 v. $ After removing battery a $0.2 \mu F$ capacitor is connected in parallel to it. The voltage on capacitor will become :

asked Jan 3, 2014 by meena.p

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Electric potential at any point is $V=-10 x +6y +\sqrt {60 }z$, then magnitude of electric field is :

asked Jan 3, 2014 by meena.p

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If capacitor is changed from 0 to 20 v using constant current. Variation in energy U of capacitor with time t will be

asked Jan 3, 2014 by meena.p

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All the capacitors shown in circuit are identical . Each can withstand maximum $100 V$ between its terminals . The maximum voltage that can be applied safely b/w A and B is

asked Jan 3, 2014 by meena.p

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Potential of any point inside a charged hollow sphere :

asked Jan 3, 2014 by meena.p

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n identical condensers are joined in series and are charged to potential v. Now they are seperated and joined in parallel. Total energy and potential difference of combination will be :

asked Jan 3, 2014 by meena.p

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Evaluate : $\cos\; \large \bigg( \frac{\pi}{2} -$$ \cos^{-1}\; \large\bigg (-\frac{\sqrt 3}{2}\bigg)\bigg)$

asked Dec 22, 2013 by balaji.thirumalai

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Angle between lines of force and equi-potential surface is?

asked Dec 20, 2013 by balaji.thirumalai

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If the space between two plates of a capacitor is filled with liquid of dielectric constant K, the capacitance of the capacitor:

asked Dec 20, 2013 by balaji.thirumalai

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A condenser of $100\; \mu F$ is charged to $50 V$. What is its energy in Joules?

asked Dec 20, 2013 by balaji.thirumalai

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Radii of two spheres forming a spherical condenser are 0.3 and 0.4m. If dielectric constant of medium is 4 and medium is completely filled in between, find the capacity of the condenser..

asked Dec 20, 2013 by balaji.thirumalai

1 answer

If $\tan^{-1}(x-1)+\tan^{-1}x+\tan^{-1}(x+1)=\tan^{-1}3x$ then $x$ is

asked Nov 19, 2013 by sreemathi.v

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If $\cos^{-1}x-\cos^{-1}\large\frac{y}{2}$$=\alpha$ then $4x^2-4xy.\cos \alpha-y^2$ is equal to

asked Nov 19, 2013 by sreemathi.v

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Find all positive integral solutions of the equation $\tan^{-1}x+\cot^{-1}y=\tan^{-1}3$

asked Nov 18, 2013 by sreemathi.v

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The value of $x$ where $d>0$ and $\tan[\sec^{-1}\big(\large\frac{1}{x}\big)]=$$\sin(\tan^{-1}2)$ is

asked Nov 18, 2013 by sreemathi.v

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If $\cot^{-1}(\sqrt{\cos\alpha})-\tan^{-1}(\sqrt{\cos\alpha})=x$ then $\sin x$ is equal to

asked Nov 18, 2013 by sreemathi.v

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Solve for $x$: $\tan^{-1}x+2\cot^{-1}x=\large\frac{2\pi}{3}$.

asked Nov 15, 2013 by sreemathi.v

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If $-\large\frac{x}{2}$$<\sin^{-1}x<\large\frac{x}{2}$ then $\tan(\sin^{-1}x)$ is equal to

asked Nov 15, 2013 by sreemathi.v

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If $\tan^{-1}\big(\large\frac{a}{x}\big)$$+\tan^{-1}\big(\large\frac{b}{x}\big)=\frac{\pi}{2}$ then $x$ is equal to

asked Nov 15, 2013 by sreemathi.v

1 answer

If $\tan^{-1}\large\frac{1}{a-1}$$=\tan^{-1}x+\tan^{-1}(x+1)=\tan^{-1}3x$ is

asked Nov 15, 2013 by sreemathi.v

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Find all possible values of $p$ and $q$ for which $\cos^{-1}\sqrt p+\cos^{-1}\sqrt{1-p}=\large\frac{3\pi}{4}$

asked Oct 21, 2013 by sreemathi.v

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Let $a,b,c$ be positive real numbers .Let $\theta=\tan^{-1}\sqrt{\large\frac{a(a+b+c)}{bc}}+$$\tan^{-1}\sqrt{\large\frac{b(a+b+c)}{ca}}$$+\tan^{-1}\sqrt{\large\frac{c(a+b+c)}{ab}}$.Then $\tan\theta$

asked Oct 21, 2013 by sreemathi.v

1 answer

Evaluate : $\sin^{-1}\large\frac{4}{5}$$+\sin^{-1}\large\frac{5}{13}$$+\sin^{-1}\large\frac{16}{65}$

asked Oct 17, 2013 by sreemathi.v

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Find the value of $\tan\big[\large\frac{1}{2}$$\big(\sin^{-1}\large\frac{2x}{1+x^2}+$$\cos^{-1}\large\frac{1-y^2}{1+y^2}\big)\big],$$\mid x\mid < 1,y > 0$ and $xy <1$

asked Oct 17, 2013 by sreemathi.v

1 answer

Evaluate : $\tan\big[\large\frac{1}{2}$$\cos^{-1}\large\frac{\sqrt 5}{3}\big]$

asked Oct 17, 2013 by sreemathi.v

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$\cot^{-1}\big(\sqrt{\cos\alpha}-\tan^{-1}(\sqrt{\cos\alpha}\big)=x$ then $\sin x=?$

asked Oct 16, 2013 by sreemathi.v

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Find $\cos\tan^{-1}\sin\cot^{-1}x$

asked Oct 16, 2013 by sreemathi.v

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The value of $\cot\sum\limits_{n=1}^{23}\cot^{-1}\big(1+\sum\limits_{k=1}^n 2k\big)$ is

asked Oct 16, 2013 by sreemathi.v

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