Physics-
General
Easy

Question

What is the velocity of the bob of a simple pendulum at its mean position, if it is able to rise to vertical height of 18 cm. (Take g open equals 10 text end text m divided by s to the power of 2 end exponent close parentheses

  1. 0.4 m/s    
  2. 4 m/s    
  3. 6 m/s    
  4. 0.6 m/s    

The correct answer is: 6 m/s

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A body having a mass of 0.5 kg slips along the wall of a semispherical smooth surface of radius 20 cm shown in figure. What is the velocity of body at the bottom of the surface? open parentheses G equals fraction numerator 10 text end text m over denominator s to the power of 2 end exponent end fraction close parentheses

A body having a mass of 0.5 kg slips along the wall of a semispherical smooth surface of radius 20 cm shown in figure. What is the velocity of body at the bottom of the surface? open parentheses G equals fraction numerator 10 text end text m over denominator s to the power of 2 end exponent end fraction close parentheses

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Consider the frequency distribution of the given number

If the mean is known to be ' 3 , then the value of f is

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Force F on a particle moving in a straight line varies with distance d as shown in the figure. The work done on the particle during its displacement of 12 m

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Given below is a graph between a variable force (F) (along y-axis) and the displacement (X) (along x minus axis) of a particle in one axis) of a particle in one dimension. The work done by the force in the displacement interval between 0 m and 30 m is

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Velocity time graph of a particle of mass 2 kg moving in a straight line is as shown in figure. Work done by all forces on the particle is

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A toy car of mass 4 kg moves up a ramp under the influence of force F plotted against displacement x. The maximum height attained is given (Take open g equals 10 text end text m divided by s to the power of 2 end exponent close parentheses

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If Wa, Wb, and Wc represent the work done in moving a particle from X to Y along three different path a, b, and c respectively (as shown) in the gravitational field of a point mass m, find the correct relation between Wa, Wb and Wc

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physics-General
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Let P equals 3 to the power of 1 divided by 3 end exponent times 9 to the power of 1 divided by 9 end exponent times 27 to the power of 1 divided by 27 end exponent horizontal ellipsis horizontal ellipsis infinity then P to the power of 1 divided by 3 end exponent equals

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If A and G are A.M and G.M between two positive numbers a and b are connected by the relation A+G=a-b then the numbers are in the ratio

We have to be careful while solving quadratic equation questions as there are chances of mistakes with the signs while finding the roots. Sometimes the students try to use factorisation methods to solve the quadratic equation, but in this type of questions, it is not recommended at all. Always try to use the quadratic formula for solving. You can also remember the statement to be proved, given in the question as a property for two positive numbers.

If A and G are A.M and G.M between two positive numbers a and b are connected by the relation A+G=a-b then the numbers are in the ratio

Maths-General

We have to be careful while solving quadratic equation questions as there are chances of mistakes with the signs while finding the roots. Sometimes the students try to use factorisation methods to solve the quadratic equation, but in this type of questions, it is not recommended at all. Always try to use the quadratic formula for solving. You can also remember the statement to be proved, given in the question as a property for two positive numbers.

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If l, m, n are the p to the power of text th end text end exponent comma q to the power of text th end text end exponent comma r to the power of text th end text end exponent terms of a G.P which are +ve, then open vertical bar table attributes columnalign left end attributes row cell l o g invisible function application l end cell p 1 row cell l o g invisible function application m end cell q 1 row cell l o g invisible function application n end cell r 1 end table close vertical bar equals

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