Physics

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Easy

Question

# At what distance from the center of earth, the value of acceleration due to gravity g will be half that of the surfaces (R=Radius of earth)

- 2R
- R
- 1.414R
- 0.414R

## The correct answer is: 1.414R

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The sum of the subtangent and subnormal to the curve at is

x = c[2cosθ - log(cosecθ + cotθ)

y = csin2θ

A tangent to the curve is given by the slope at the point. The slope is given by

let's differentiate x w.r.t θ.

We will differentiate y w.r.t θ

Now, let us denote slope by m

m = √3

y

So, the answer is 2c

y = csin2θ

A tangent to the curve is given by the slope at the point. The slope is given by

let's differentiate x w.r.t θ.

We will differentiate y w.r.t θ

Now, let us denote slope by m

m = √3

y

_{1 }=(y)_{θ=π/3}=So, the answer is 2c

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x = c[2cosθ - log(cosecθ + cotθ)

y = csin2θ

A tangent to the curve is given by the slope at the point. The slope is given by

let's differentiate x w.r.t θ.

We will differentiate y w.r.t θ

Now, let us denote slope by m

m = √3

y

So, the answer is 2c

y = csin2θ

A tangent to the curve is given by the slope at the point. The slope is given by

let's differentiate x w.r.t θ.

We will differentiate y w.r.t θ

Now, let us denote slope by m

m = √3

y

_{1 }=(y)_{θ=π/3}=So, the answer is 2c

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