Maths-
General
Easy
Question
There is an error of 0.05cm in measuring the circumference 20cm of a circle. Then the percentage error in the area is
- 0.2
- 0.3
- 0.4
- 0.5
The correct answer is: 0.2
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In the curve y = a log(x2 – a2) the sum of the lengths and the sub tangent at any point varies as
In the curve y = a log(x2 – a2) the sum of the lengths and the sub tangent at any point varies as
Maths-General
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If the tangent at any point of the curve meets the co-ordinate axes at A and B then OA + OB =
If the tangent at any point of the curve meets the co-ordinate axes at A and B then OA + OB =
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The plane 2x -2y + z + 12 = 0 touches the sphere x2 + y2 + z2 – 2x – 4y + 2z – 3 = 0 at the point
The plane 2x -2y + z + 12 = 0 touches the sphere x2 + y2 + z2 – 2x – 4y + 2z – 3 = 0 at the point
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Chemistry-
The IUPAC name 'of is:
The IUPAC name 'of is:
Chemistry-General
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The IUPAC name of the compound
is:
The IUPAC name of the compound
is:
Chemistry-General
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The correct name of
is:
The correct name of
is:
Chemistry-General
Chemistry-
Which one of the following is the heterocyclic compound?
Which one of the following is the heterocyclic compound?
Chemistry-General
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(A) If two compounds have the same empirical formula but different molecular formula, they have same vapour density.
(R) g/mL is the unit of vapour density.
(A) If two compounds have the same empirical formula but different molecular formula, they have same vapour density.
(R) g/mL is the unit of vapour density.
Chemistry-General
Chemistry-
The desiccants used for absorbing water during Liebig's method for estimation of carbon and hydrogen are:
The desiccants used for absorbing water during Liebig's method for estimation of carbon and hydrogen are:
Chemistry-General
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Formula which represents a simple ratio of atoms of different elements present in a molecule of the substance is called:
Formula which represents a simple ratio of atoms of different elements present in a molecule of the substance is called:
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