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Recent questions and answers in 1998

Questions >> JEEMAIN and NEET >> NEET PAST PAPERS >> 1998

The speed of a boat is $5\; km/hr$ is still water. It crosses a river of width 1 km along the shortest possible path in 15 minutes. The velocity of river water is :

answered Aug 29, 2019 by meena.clay6

1 answer

A rigid rod is placed against the wall as shown in figure. When its velocity of lower end is $10 ms^{ â€“1}$ and its base makes an angle $\alpha$ = 60Â° with horizontal, then the vertical velocity of its end B will be :

answered Aug 29, 2019 by meena.clay6

1 answer

for nuclear reaction : $_{92}U^{235} +_0 n^1 \longrightarrow _{56}Ba^{144}+........+3_0n^1$

answered Aug 29, 2019 by meena.clay6

1 answer

If a source moves perpendicularly from listener then the change in frequency will be :

answered Aug 29, 2019 by meena.clay6

1 answer

Turn ratio of a step-up transformer is 1 : 25. If current in load coil is 2A, then the current in primary coil will be :

answered Aug 29, 2019 by meena.clay6

1 answer

Which of the following gives colour with the water :

answered Aug 27, 2019 by sharmaaparna1

1 answer

A ball is dropped from a height of 5 m, if it rebound upto height of 1.8 m, then the ratio of velocities of the ball after and before rebound is :

answered Aug 27, 2019 by meena.clay6

1 answer

A particle, with restoring force proportional to displacement and resisting force proportional to velocity is subjected to a force F sin $\omega$t. If the amplitude of the particle is maximum for $\omega$ = $\omega_{1}$ and the energy of the particle maximum for $\omega$ = $\omega_{2}$, then :

answered Aug 27, 2019 by meena.clay6

1 answer

A point Q lies on the perpendicular bisector of an electrical dipole of dipole moment p. If the distance of Q from the dipole is r (much larger than the size of the dipole), then the electric field at Q is proportional to :

answered Aug 27, 2019 by meena.clay6

2 answers

We consider a thermodynamic system. If $\Delta$U represents the increase in its internal energy and W the work done by the system, which of the following statements is true ?

answered Aug 27, 2019 by meena.clay6

1 answer

Common emitter circuit is used as amplifier, its current gain is 50. If input resistance is 1 k$\Omega$ and input voltage is 5 volt then output current will be :

answered Aug 27, 2019 by meena.clay6

1 answer

Radiation energy corresponding to the temperature T of the sun is E. If its temperature is doubled, then its radiation energy will be :

answered Aug 27, 2019 by meena.clay6

1 answer

Effect of anaesthetics on body :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Sewage purification is performed by :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Botulism affects :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Segments of DNA which can move in genome :

answered Aug 26, 2019 by swapnarajan1982

1 answer

A male insect mistakes a flower of orchid to be its female due to shape and perform the act of copulation and induce pollination. This is an example of :

answered Aug 26, 2019 by swapnarajan1982

1 answer

In present times the origin of life is not possible from inorganic compounds due to :

answered Aug 26, 2019 by swapnarajan1982

1 answer

In which biome a new plant may adapt soon :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Genetic drift in mendelian population takes place in :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Variations in proteins are due to :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Which of the following most used in genetic engineering :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Symptoms of Lathyrism :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Arterial blood pressure in human beings :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Histamine secreted by :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Oxidation of palmitic and yield :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Unit of contraction :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Contractile protein is :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Function of thyrocalcitonin :

answered Aug 26, 2019 by swapnarajan1982

1 answer

CO is harmful because :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Oral contraceptives contain :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Transport of gases in alveoli takes place by :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Solenocytes occur in :

answered Aug 26, 2019 by swapnarajan1982

2 answers

Which part not have only involuntary muscles :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Hollow air filled bones (pneumatic bones) occurs in :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Typhoid caused by :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Which of the following statement is true :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Age of Dryopithecous :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Which of the following stimulates the secretion of gastric juice :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Number of bones in hind limb of man :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Lower jaw composed of :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Vitamin which induces maturation of R.B.C. :

answered Aug 26, 2019 by swapnarajan1982

1 answer

True statement for cellulose molecule :

answered Aug 26, 2019 by swapnarajan1982

2 answers

Lactose composed of :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Deficiency of protein leads to :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Species separated by geographical barriers are called :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Enamel of teeth is secreted by :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Genetic engineering involves :

answered Aug 26, 2019 by swapnarajan1982

1 answer

Knife of DNA :

answered Aug 26, 2019 by swapnarajan1982

3 answers

Transfusion tissue is present in the leaves of :

asked Jun 15, 2018 by pady_1

1 answer

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