Physics
General
Easy
Question
Here are the graphs of x→ t of moving body. which of them is not suitable?
The correct answer is:
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A cubic polynomial f(x) = ax3 + bx2 + cx + d has a graph which touches the x-axis at 2, has another x-intercept at –1 and has y-intercept at –2 as shown. The value of, a + b + c + d equals
A cubic polynomial f(x) = ax3 + bx2 + cx + d has a graph which touches the x-axis at 2, has another x-intercept at –1 and has y-intercept at –2 as shown. The value of, a + b + c + d equals
Maths-General
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Consider f(x) = |1–x| 1 £ x £ 2 and g(x )= f(x) + b , 1 £ x £ 2 then which of the following is correct?
Consider f(x) = |1–x| 1 £ x £ 2 and g(x )= f(x) + b , 1 £ x £ 2 then which of the following is correct?
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The value of c in Lagrange’s theorem for the function f(x) = log sin x in the interval is -
The value of c in Lagrange’s theorem for the function f(x) = log sin x in the interval is -
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physics
The relation between time and displacement of a moving particle is given by where is a constant. The shape of the graph is is....
The relation between time and displacement of a moving particle is given by where is a constant. The shape of the graph is is....
physicsGeneral
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If P (q) and Q are two points on the ellipse , then locus of the mid – point of PQ is
If P (q) and Q are two points on the ellipse , then locus of the mid – point of PQ is
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If CP and CD are semi – conjugate diameters of an ellipse then CP2 + CD2 =
If CP and CD are semi – conjugate diameters of an ellipse then CP2 + CD2 =
Maths-General
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The normals to the curve x = a ( + sin ), y = a (1 – cos ) at the points = (2n + 1) , n I are all -
The normals to the curve x = a ( + sin ), y = a (1 – cos ) at the points = (2n + 1) , n I are all -
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The normal to the curve x = 3 cos – , y = 3 sin – at the point = /4 passes through the point -
The normal to the curve x = 3 cos – , y = 3 sin – at the point = /4 passes through the point -
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The normal of the curve given by the equation x = a (sin + cos), y = a (sin – cos) at the point Q is -
The normal of the curve given by the equation x = a (sin + cos), y = a (sin – cos) at the point Q is -
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If the tangent at ‘t’ on the curve y = , x = meets the curve again at and is normal to the curve at that point, then value of t must be -
If the tangent at ‘t’ on the curve y = , x = meets the curve again at and is normal to the curve at that point, then value of t must be -
Maths-General
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The tangent at (, – ) on the curve y = – meets the curve again at Q, then abscissa of Q must be -
The tangent at (, – ) on the curve y = – meets the curve again at Q, then abscissa of Q must be -
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If = 1 is a tangent to the curve x = 4t,y =, t R then -
If = 1 is a tangent to the curve x = 4t,y =, t R then -
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The line + = 1 touches the curve at the point :
The line + = 1 touches the curve at the point :
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physics
An object moves in a straight line. It starts from the rest and its acceleration is . 2 ms2.After reaching a certain point it comes back to the original point. In this movement its acceleration is -3 ms2, till it comes to rest. The total time taken for the movement is 5 second. Calculate the maximum velocity.
An object moves in a straight line. It starts from the rest and its acceleration is . 2 ms2.After reaching a certain point it comes back to the original point. In this movement its acceleration is -3 ms2, till it comes to rest. The total time taken for the movement is 5 second. Calculate the maximum velocity.
physicsGeneral
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For the ellipse the foci are
For the ellipse the foci are
Maths-General