Biology
General
Easy

Question

The material used in determining the age of a fossil is:

  1. iodine    
  2. sulphur    
  3. carbon    
  4. radioactive carbon    

The correct answer is: radioactive carbon

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Evolutionary convergence is the development of:

Evolutionary convergence is the development of:

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Darwin's finches represents:

Darwin's finches represents:

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Organisms which obtain energy by the oxidation of reduced inorganic compounds are called:

Organisms which obtain energy by the oxidation of reduced inorganic compounds are called:

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Finding of Miller's experiment on origin of life has provided evidence for:

Finding of Miller's experiment on origin of life has provided evidence for:

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The number of codons that code different amino acids is -

The number of codons that code different amino acids is -

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Assertion (A):If a>0,b>0 and c>0, then (a+b+c)(1a+1b+1c)9Reason (R): For positive numbers a, b, c, AMGM

Assertion (A):If a>0,b>0 and c>0, then (a+b+c)(1a+1b+1c)9Reason (R): For positive numbers a, b, c, AMGM

maths-General
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General
maths-

The length of the chord joining the points (4cosθ, 4sinθ) and (4cosθ+60°, 4sin(θ+60°)of the circle x2+y2=16 is

The length of the chord joining the points (4cosθ, 4sinθ) and (4cosθ+60°, 4sin(θ+60°)of the circle x2+y2=16 is

maths-General
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In an orbital motion, the angular momentum vector is

In an orbital motion, the angular momentum vector is

Physics-General
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If the two curves y equals x to the power of 2 end exponent plus 1 and x to the power of 2 end exponent plus y to the power of 2 end exponent equals 1 touch each other at (0,1) then the equation of the common tangent is

If the two curves y equals x to the power of 2 end exponent plus 1 and x to the power of 2 end exponent plus y to the power of 2 end exponent equals 1 touch each other at (0,1) then the equation of the common tangent is

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General
Maths-

At (1,1), the two curves x to the power of 3 end exponent y equals 1 and y equals e to the power of 3 open parentheses 1 minus x close parentheses end exponent

At (1,1), the two curves x to the power of 3 end exponent y equals 1 and y equals e to the power of 3 open parentheses 1 minus x close parentheses end exponent

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The slope of the curve y equals k open parentheses 2 x minus 1 close parentheses to the power of 2 end exponent at open parentheses 1 comma fraction numerator 1 over denominator 4 end fraction close parentheses is 1, then k is

The slope of the curve y equals k open parentheses 2 x minus 1 close parentheses to the power of 2 end exponent at open parentheses 1 comma fraction numerator 1 over denominator 4 end fraction close parentheses is 1, then k is

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Chemistry-

_________ is isostructrual with diamond

_________ is isostructrual with diamond

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General
maths-

Observe the following statements and choose correct answer Statement-I:A particle p moves along a straight line, starting from a fixed point ‘O’, obeying s=16+48t-t3.the direction of p when t=5 is along OP¯ Statement-II: For a particle moving on a line, if velocity v<0 then the body moves towards the initial point.

Observe the following statements and choose correct answer Statement-I:A particle p moves along a straight line, starting from a fixed point ‘O’, obeying s=16+48t-t3.the direction of p when t=5 is along OP¯ Statement-II: For a particle moving on a line, if velocity v<0 then the body moves towards the initial point.

maths-General
General
maths-

Statement ‐ I : The equation zz¯+a¯z+az¯+λ=0 where a is a complex number, represents a circle in Argand plane if λ is real. Statement ‐II : The radius of the circle zz¯+a¯z+az¯+λ=0 is λ-aa¯

Statement ‐ I : The equation zz¯+a¯z+az¯+λ=0 where a is a complex number, represents a circle in Argand plane if λ is real. Statement ‐II : The radius of the circle zz¯+a¯z+az¯+λ=0 is λ-aa¯

maths-General
General
GeneralVideo

Divide the following fractions:
2 over 11 divided by 9 over 22

To remove the sign of division, we take the reciprocal of the second fraction and multiply the fraction 2/11 by the reciprocal of the second fraction.

Divide the following fractions:
2 over 11 divided by 9 over 22

GeneralGeneral

To remove the sign of division, we take the reciprocal of the second fraction and multiply the fraction 2/11 by the reciprocal of the second fraction.

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