Recent questions tagged ch1

Indian Botanical Garden and National Botanical Research Institute are located at

asked Jan 3, 2014 by pady_1

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Regarding Assertion (A) and its Reason (R) :- <br> A: Fishes, amphibians, reptiles, birds are placed in Phylum Chordata but not mammals . <br> R: They are placed in a single phylum based on the common features like presence of notochord and dorsal hollow neural system

asked Jan 3, 2014 by pady_1

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Identify the wrong statement:

asked Jan 3, 2014 by pady_1

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Pick the Incorrect statement:

asked Jan 3, 2014 by pady_1

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1. All categories together constitute the taxonomic category. 2. Each category represents a rank and is commonly termed as taxon

asked Jan 3, 2014 by pady_1

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Regarding systematics which among the following is incorrect

asked Jan 3, 2014 by pady_1

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Some universal rules of nomenclature are as follows: ( Identify the correct one)

asked Jan 3, 2014 by pady_1

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Say True or False: 1. Properties of tissues are present in the constituent cells 2. Properties of cellular organelles are present in the molecular constituents of the organelle

asked Jan 3, 2014 by pady_1

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ICN, The International Code of Nomenclature for algae, fungi, and plants (ICN) was formerly called ICBN. What does ICBN stand for?

asked Jan 3, 2014 by pady_1

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4. (1) The sum total of all chemical reactions occurring in our body is metabolism (2) Metabolic reactions cannot be demonstrated outside the body in cell free systems Regarding 1 and 2:

asked Jan 3, 2014 by pady_1

1 answer

3. Assertion (A): Growth & Reproduction are mutually exclusive events Reason (R): Growth is increase in body mass & Reproduction is production of progeny possessing features more or less similar to those of parents Regarding the statements A and R:

asked Jan 3, 2014 by pady_1

1 answer

1. Distinctive Characteristics exhibited by organisms are:

asked Jan 3, 2014 by pady_1

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A charge q is placed at middle point of the line joining two equal charges +Q. The value of q such that system is in equilibrium is :

asked Jan 3, 2014 by meena.p

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A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 25 V. The electric field at centre of sphere is :

asked Jan 3, 2014 by meena.p

1 answer

Two small spherical balls whose charges are $20 \mu c$ each are hanged with help of 1 m long thread from roof. In equilibrium both threads are seperated by $ 60^{\circ}$ Tension in each thread is :

asked Jan 3, 2014 by meena.p

1 answer

Two metal balls of same radii are charged to 5 and -25 units of electricity . They are brought in contact with each other and then again seperated to original distance. Ratio of magnitude of force b/w two balls after and before contact is

asked Jan 3, 2014 by meena.p

1 answer

In a medium of dielectric constant K, the electric field is $\overrightarrow {E}$, if $\in _0$ is permittivity of free space , the electric displacement vector is :

asked Jan 3, 2014 by meena.p

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A force F acts between two charges kept 1 cm apart in air. If permittivity of air and dielectric constant of water are $\in _0$ and $K$ respectively, find the force acting when both atoms are placed in water.

asked Jan 3, 2014 by meena.p

1 answer

Total electric flux coming out of unit positive charge put in air is :

asked Jan 3, 2014 by meena.p

1 answer

Two plates are 5 cm apart, a potential difference of 10V is applied between them. What is the electric field between the plates?

asked Dec 20, 2013 by balaji.thirumalai

1 answer

If three equal charges are placed on three corners of square and force between $q_1$ and $q_2$ is $F_2$, and the force between $q_1$ and $q_2$ is $F_3$, find $F_3/F_2$

asked Dec 20, 2013 by balaji.thirumalai

1 answer

To find the value of $g$ using simple pendulum $T=2.00 sec,\;l=50cm.$ was measured. The maximum possible errors in $g$ is (Error in $T$=0.01 sec,$l$=0.1 cm)

asked Jun 19, 2013 by meena.p

1 answer

Find the dimension of physical quantity $X$ in the equation $Force=\large\frac{X}{Density}$

asked Jun 19, 2013 by meena.p

2 answers

Pick the odd one out -

asked Jun 17, 2013 by meena.p

1 answer

The identity element of the binary operation $\large $ defined on $Q-\{0\}$ as $a\large $ $b=\large\frac{ab}{2},$ $ \forall \:a,b\:\in\:Q-\{0\}$

asked May 31, 2013 by rvidyagovindarajan_1

1 answer

If a relation $R$ on the set $\{1,2,3\}$ is defined as $R=\{(1,2)\}$, then $R$ is

asked May 31, 2013 by rvidyagovindarajan_1

1 answer

If $f:[0,1]\rightarrow\:[0,1]$ is defined as $f(x)=\left \{\begin {array}{c,c}x &if\:x\:is\:rational\\1-x & if\:x\:is\:irrational\end {array}\right.$ then $fof(x)=?$

asked May 31, 2013 by rvidyagovindarajan_1

1 answer

The number of bijection mappings that are possible from $Set \:A$ containing 5 elements to $Set\:B$ containing 6 elements is ?

asked May 31, 2013 by rvidyagovindarajan_1

1 answer