General
Easy
Maths-

If there is an error of 0.02 sq. cm is made in calculating the area of a circle. If the radius is 5cm, then the percentage error in the circumference of the circle is

Maths-General

  1. fraction numerator 0.004 over denominator pi end fraction    
  2. fraction numerator 4 over denominator pi end fraction    
  3. fraction numerator 0.4 over denominator pi end fraction    
  4. fraction numerator 0.04 over denominator pi end fraction    

    Answer:The correct answer is: fraction numerator 0.04 over denominator pi end fraction

    Book A Free Demo

    +91

    Grade*

    Related Questions to study

    General
    chemistry-

    Rubber latex is which type of emulsion

    Rubber latex is which type of emulsion

    chemistry-General
    General
    biology

    Cross section image of internal body structure can be obtained by using this medical technique

    Cross section image of internal body structure can be obtained by using this medical technique

    biologyGeneral
    General
    physics

    A satellite revolves around the earth in an elliptical orbit. Its speed,

    A satellite revolves around the earth in an elliptical orbit. Its speed,

    physicsGeneral
    General
    physics

    A small satellite is revolving near earth's surface. Its orbital velocity will be nearly=...kms-1

    A small satellite is revolving near earth's surface. Its orbital velocity will be nearly=...kms-1

    physicsGeneral
    General
    physics

    Two  satellites A and B go round a planet p in circular orbits having radii 4R and R  respectively if the speed of the satellite A is 3V , the speed if satellite B will be

    Two  satellites A and B go round a planet p in circular orbits having radii 4R and R  respectively if the speed of the satellite A is 3V , the speed if satellite B will be

    physicsGeneral
    General
    physics

    If the height of a satellite from the earth is negligible in comparison of the radius of the earth R, the orbital velocity of the satellite is……

    If the height of a satellite from the earth is negligible in comparison of the radius of the earth R, the orbital velocity of the satellite is……

    physicsGeneral
    General
    biology

    An endoscope is employed by a physician to view the internal parts of a body organ. It is based on the principle is

    An endoscope is employed by a physician to view the internal parts of a body organ. It is based on the principle is

    biologyGeneral
    General
    biology

    Which of the following is used to normalize low level heart beats

    Which of the following is used to normalize low level heart beats

    biologyGeneral
    General
    biology

    The most abundant source of protons in the body are

    The most abundant source of protons in the body are

    biologyGeneral
    General
    physics

    The period of a satellite in circular orbit around a planet is Independent of

    The period of a satellite in circular orbit around a planet is Independent of

    physicsGeneral
    General
    biology

    Assertion : Sometimes nonsmokers are prone to lung cancer.
    Reason : Nonsmokers are also called passive smokers.

    Indoor atmospheres and other confined spaces are often contaminated by tobacco smoke which is inhaled involuntarily by both smokers and nonsmokers. It is called involuntary smoke inhalation or passive smoking. It is now recognized as a cause of lung cancer in nonsmokers.

    Assertion : Sometimes nonsmokers are prone to lung cancer.
    Reason : Nonsmokers are also called passive smokers.

    biologyGeneral
    Indoor atmospheres and other confined spaces are often contaminated by tobacco smoke which is inhaled involuntarily by both smokers and nonsmokers. It is called involuntary smoke inhalation or passive smoking. It is now recognized as a cause of lung cancer in nonsmokers.
    General
    physics

    A satellite is moving around the earth with speed v in a circular orbit of radius .i If the orbit radius is decreasd by 1% its speed will

    A satellite is moving around the earth with speed v in a circular orbit of radius .i If the orbit radius is decreasd by 1% its speed will

    physicsGeneral
    General
    physics

    As astronaut orbiting the earth in a circular orbit 120 km above the surface of earth, gently drops a spoon out of space-ship. The spoon will

    As astronaut orbiting the earth in a circular orbit 120 km above the surface of earth, gently drops a spoon out of space-ship. The spoon will

    physicsGeneral
    General
    biology

    Assertion : Fatty liver syndrome develops in alcoholics.
    Reason : In alcoholics accumulation of fats occur in liver.

    Accumulation of fat in the liver of the alcoholics result from the combination of impaired fatty acid oxidation, increased uptake and esterification of fatty acids to form triglycerides and diminished lipoprotein biosynthesis and secretion. Lipoproteins may also accumulate in the liver. Fatty liver syndrome is a condition of permanent damage to the structure and functioning of liver cells.

    Assertion : Fatty liver syndrome develops in alcoholics.
    Reason : In alcoholics accumulation of fats occur in liver.

    biologyGeneral
    Accumulation of fat in the liver of the alcoholics result from the combination of impaired fatty acid oxidation, increased uptake and esterification of fatty acids to form triglycerides and diminished lipoprotein biosynthesis and secretion. Lipoproteins may also accumulate in the liver. Fatty liver syndrome is a condition of permanent damage to the structure and functioning of liver cells.
    General
    chemistry-

    The first polymer used as biodegradable material is

    The first polymer used as biodegradable material is

    chemistry-General