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NEET - Grade 12 - Biology - Reproductive Health - Introduction and Snapshot of Reproductive Health - Study ref# 947

Introduction: You have learnt about human reproductive system and its function in Chapter 3. Now, let’s discuss a closely related topic – reproductive health. What do we understand by this term? The term simply refers to healthy reprod... read more

NEET - Grade 11 - Physics - Units and Measurements - Study ref# 2

A drop of olive oil of radius 1mm spreads into a circular film of diameter 40 cm on water surface. Estimate the size of an oil molecule. Answer: Volume should be conserved. Radius of olive oil R = 1mm. Radius of oil after spread   ... read more

NEET - Grade 11 - Physics - Units and Measurements - Study ref# 3

The Sun’s angular diameter is measured to be 1920''. The distance D of the Sun from the Earth is m. What is the diameter of the Sun? Answer: Sun’s angular diameter = 1920''  Sun’s diameter   ... read more

NEET - Grade 11 - Physics - Units and Measurements - Study ref# 4

The unit of length convenient on the nuclear scale is a fermi. . Nuclear sizes obey roughly the following empirical relation:  where r is the radius of nucleus, A its mass number and r0 is a constant equal to about 1.2 fermi. S... read more

NEET - Grade 11 - Physics - Units and Measurements - Study ref# 5

A physical quantity Q is given by The percentage error in A, B, C, D are 1%, 2%, 4%, 2% respectively. Find the percentage error in Q. Answer: Percentage of error in  ... read more

NEET - Grade 11 - Physics - Units and Measurements - Study ref# 11

The length and breadth of a rectangular area are 25.2 cm and 16.8 cm respectively and have been measured to an accuracy of 0.1 cm. Find the percentage error in the area. Answer:   Percentage of error  Percentage of error &nbs... read more

NEET - Grade 11 - Physics - Units and Measurements - Study ref# 12

While measuring the volume of a sphere an error of 1.2% is committed in the measurement of radius. What percentage error is introduced in the measurement of volume? Answer:   where  is a constant. It is easy to say that Devid... read more

NEET - Grade 11 - Physics - Units and Measurements - Study ref# 13

The time of oscillation (t) of a small drop of liquid under surface tension depends upon the density ρ, radius r and surface tension σ.Prove dimensionally that   Answer: Time of oscillation   where k is constant.Writi... read more

NEET - Grade 11 - Physics - Units and Measurements - Study ref# 14

Liquid is flowing through steadily through a pipe. Assume that the volume of the liquid flowing out per second depends on (a) The coefficient of the viscosity of the liquid η (b) The radius of the pipe r (c) The pressure gradient a... read more

NEET - Grade 11 - Physics - Units and Measurements - Study ref# 15

Show dimensionally that the frequency n of transverse waves in a string of length l and mass per unit length m under a tension T is given by    Answer: Let us suppose that,  where K is a dimensionless constant and a, b, c are... read more

NEET - Grade 11 - Physics - Units and Measurements - Study ref# 16

If the length and time period of an oscillating pendulum have errors of 1% and 2% respectively, what is the error in the estimate of g? Answer: We have, Percentage of error in g = 1 + 2 x 2 = 5%... read more

NEET - Grade 11 - Physics - Units and Measurements - Study ref# 17

A physical quantity P is related to four observable a, b, c and d as follows:  The percentage error of measurement in a, b, c and d are 1%, 3%, 4%, 2% respectively. What is the percentage error in the quantity P? If the value of P calcul... read more

NEET - Grade 11 - Physics - Units and Measurements - Study ref# 18

The volume V of a cylinder of diameter d and height h is given by  Both the diameter of the cylinder and its height are measured using a metre scale having a least count of 0.1 cm. Find the percentage error in the measurement of V if d = 1.... read more

NEET - Grade 11 - Biology - The Living World - Study ref# 3456

What is bioinformatics? Answer: Field of science in which biology, computer science and information technology merge into a single discipline, development and application of computing, mathematical and statistical methods to analyze biological, bioch... read more

NEET - Grade 11 - Biology - The Living World - Study ref# 3466

What is medical transcription? Answer: Medical transcription is the process whereby one accurately and swiftly transcribes medical records dictated by doctors and others, including history and physical reports, clinic notes, office notes, operative r... read more

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