Biology
General
Easy
Question
The ultimate source of organic evolution is
- Natural selection
- Sexual reproduction
- Hormonal action
- Mutations
The correct answer is: Mutations
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If 
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then sind 
terms] 
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The sum of all integers between 50 and 500 which are divisible by 7 is
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digits )=
digits )=
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In a 
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A bob of mass M is suspended by a massless string of length L. The horizontal velocity 
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A bob of mass 
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A body of mass is moving with a uniform speed along a circle of radius 
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Figure shows four paths for a kicked football. Ignoring the effects of air on the flight, rank the paths according to initial horizontal velocity component, highest first
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A boy throws a cricket ball from the boundary to the wicket-keeper. If the frictional force due to air cannot be ignored, the forces acting on the ball at the position X are respected by
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In a two dimensional motion of a particle, the particle moves from point , position vector 
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physics-General
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A particle is moving on a circular path of radius with uniform velocity . The change in velocity when the particle moves from 
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From an inclined plane two particles are projected with same speed at same angle , one up and other down the plane as shown in figure, which of the following statements is/are correct?
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A string of length is fixed at one end and carries a mass at the other end. The string makes 
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physics-General
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A piece of wire is bent in the shape of a parabola 
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physics-General
