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Recent questions tagged 2008

The distance travelled by a particle starting from rest and moving with an acceleration $\frac{4}{3}ms^{-2}$, in the third second is

asked Jul 26, 2018 by pady_1

1 answer

A particle of mass m, charge Q and kinetic energy T enters a transverse uniform magnetic field of induction $\overrightarrow{B}$ . After 3 seconds the kinetic energy of the particle will be -

asked Jul 26, 2018 by pady_1

2 answers

A long solenoid has 500 turns. When a current of 2 ampere is passed through it, the resulting magnetic flux linked with each turn of the solenoid is $4\times 10^{–3}$ Wb. The self-inductance of the solenoid is -

asked Jul 26, 2018 by pady_1

1 answer

A particle of mass m is projected with velocity v making an angle of $45^o$ with the horizontal from level ground. When the particle lands on the level ground the magnitude of the change in its momentum will be -

asked Jul 26, 2018 by pady_1

1 answer

What is antisense technology ?

asked Dec 23, 2013 by thanvigandhi_1

0 answers

Which one of the following pairs of organs includes only the endocrine glands ?

asked Dec 23, 2013 by thanvigandhi_1

1 answer

Cornea transplant in humans is almost never rejected. This is because :

asked Dec 23, 2013 by thanvigandhi_1

1 answer

Human insulin is being commercially produced from a transgenic species of :

asked Dec 23, 2013 by thanvigandhi_1

0 answers

Consider the following four measures (a - d ) that could be taken to successfully grow chickpea in an area where bacterial blight disease is common :

asked Dec 23, 2013 by thanvigandhi_1

0 answers

Main objective of production / use of herbicide resistant GM crops is to :

asked Dec 23, 2013 by thanvigandhi_1

1 answer

Which one of the following proved effective for biological control of nematodal diseases in plants ?

asked Dec 23, 2013 by thanvigandhi_1

0 answers

The linking of antibiotic resistance gene with the plasmid vector became possible with :

asked Dec 21, 2013 by thanvigandhi_1

1 answer

Modern detergents contain enzyme preparations of :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Cry1 endotoxins obtained from Bacillus Thuringiensis are effective against :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Which one of the following is the correct statement regarding the particular psychotropic drug specified ?

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid ?

asked Dec 21, 2013 by thanvigandhi_1

1 answer

Consider the following statements about biomedical technologies :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Match the disease in column I with the appropriate items ( pathogen / prevention / treatment ) in column II.

asked Dec 21, 2013 by thanvigandhi_1

0 answers

To which type of barriers under innate immunity, do the saliva in the mouth and the tears from the eyes, belong ?

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Gel electrophoresis is used for :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Trichoderma harzianum has proved a useful microorganism for :

asked Dec 21, 2013 by thanvigandhi_1

1 answer

Which one of the following is being tried in India as a biofuel substitute for fossil fuel ?

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Which one of the following is linked to the discovery of Bordeaux mixture as a popular fungicide ?

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Bacterial leaf blight of rice is caused by a species of :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

A transgenic food crop which may help in solving the problem of night blindness in developing countries is :

asked Dec 21, 2013 by thanvigandhi_1

1 answer

Consider the following four statements (a - d ) about certain desert animals such as kangaroo rat.

asked Dec 21, 2013 by thanvigandhi_1

0 answers

A lake near a village suffered heavy mortality of fishes within a few days. Consider the following reasons for this ?

asked Dec 21, 2013 by thanvigandhi_1

1 answer

The table below gives the populations ( in thousands ) of ten species ( A - J ) in four areas ( a - d ) consisting of the number of habitats given within brackets against each. Study the table and answer the question which follows :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

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 Dec 21, 2013 by thanvigandhi_1

0 answers

Consider the following statements concerning food chains :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

The slow rate of decomposition of fallen logs in nature is due to their :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

World Summit on Sustainable Development ( 2002 ) was held in :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Which one of the following is not observed in biodiversity hotspots ?

asked Dec 21, 2013 by thanvigandhi_1

0 answers

About 70% of the total global carbon is found in :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Quercus species are the dominant component in :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Which one of the following is the correct percentage of the two ( out of the total of 4 ) green house gases that contribute to the total global warming ?

asked Dec 21, 2013 by thanvigandhi_1

0 answers

In human adult females oxytocin :

asked Dec 21, 2013 by thanvigandhi_1

1 answer

Consider the statements given below regarding contraception and answer as directed thereafter :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

The haemoglobin of a human foetus :

asked Dec 21, 2013 by thanvigandhi_1

1 answer

Which one of the following statements is incorrect about menstruation ?

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Which extraembryonic membrane in humans prevents desiccation of the embryo inside the uterus ?

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Unisexuality of flowers prevents :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

What does the filiform apparatus do at the entrance into ovule ?

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Which one of the following pairs of pant structures has haploid number of chromosomes ?

asked Dec 21, 2013 by thanvigandhi_1

0 answers

The length of different internodes in a culm of sugarcane is variable because of :

asked Dec 21, 2013 by thanvigandhi_1

1 answer

Which one of the following is resistant to enzyme action ?

asked Dec 21, 2013 by thanvigandhi_1

0 answers

In humans, at the end of the first meiotic division, the male germ cells differentiate into the :

asked Dec 21, 2013 by thanvigandhi_1

1 answer

In humans, blood passes from the post caval to the diastolic right atrium of heart due to :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Earthworms have no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic skeleton. It is due to :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

The most active phagocytic white blood cells are :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

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