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Physics-

General

Easy

Question

Two identical solid copper spheres of radius R are placed in contact with each other. The, gravitational force between them is proportional to

$R^{2}$ ,
$R^{- 2}$
$R^{- 4}$
$R^{4}$

The correct answer is: $R to the power of negative 4 end exponent$

Related Questions to study

A light ray is incident perpendicular to one face of 90° prism and is totally internally reflected at the glass-air interface. If the angle of reflection is 45° We conclude that the refractive index.....

A light ray is incident perpendicular to one face of 90° prism and is totally internally reflected at the glass-air interface. If the angle of reflection is 45° We conclude that the refractive index.....

physics-General

A ray falls on a prism ABC(AB=BC) and travels as shown in the figure. The minimum refractive, index of the prism material should be.

A ray falls on a prism ABC(AB=BC) and travels as shown in the figure. The minimum refractive, index of the prism material should be.

physics-General

Two parallel light rays are incident at one surface of a prism of refractive index 1.5 as shown in figure. What is the angle between the rays as they emerge ?

Two parallel light rays are incident at one surface of a prism of refractive index 1.5 as shown in figure. What is the angle between the rays as they emerge ?

physics-General

parallel

$f space left parenthesis x right parenthesis equals t a n to the power of negative 1 end exponent invisible function application x minus x$ is decreasing in

$f space left parenthesis x right parenthesis equals t a n to the power of negative 1 end exponent invisible function application x minus x$ is decreasing in

The interval of increase of the function $f space left parenthesis x right parenthesis equals x minus e to the power of x plus t a n invisible function application open parentheses fraction numerator 2 pi over denominator 7 end fraction close parentheses$ is

For such questions, we should know different formulas of differentiation.

The interval of increase of the function $f space left parenthesis x right parenthesis equals x minus e to the power of x plus t a n invisible function application open parentheses fraction numerator 2 pi over denominator 7 end fraction close parentheses$ is

For such questions, we should know different formulas of differentiation.

In experiment of the potentiometer wire $A B$ of length 100 cm has a resistance of 10 $capital omega$ , It is connected in series with a resistance R and a cell of emf 2 volts and of negligible internal resistance. A Source of emf 10mV is balanced against a length of 40 cm of the potentiometer wire. What is the value of the external resistance?

In experiment of the potentiometer wire $A B$ of length 100 cm has a resistance of 10 $capital omega$ , It is connected in series with a resistance R and a cell of emf 2 volts and of negligible internal resistance. A Source of emf 10mV is balanced against a length of 40 cm of the potentiometer wire. What is the value of the external resistance?

physics-General

parallel

The function $f space left parenthesis x right parenthesis equals t a n to the power of negative 1 end exponent invisible function application x$ is

For such questions, we should check the rules of increasing and decreasing function.

The function $f space left parenthesis x right parenthesis equals t a n to the power of negative 1 end exponent invisible function application x$ is

For such questions, we should check the rules of increasing and decreasing function.

If the function $fraction numerator c o s invisible function application x plus K s i n invisible function application x over denominator 2 c o s invisible function application x plus 3 s i n invisible function application x end fraction$ is decreasing in its domain then $K E$

If the function $fraction numerator c o s invisible function application x plus K s i n invisible function application x over denominator 2 c o s invisible function application x plus 3 s i n invisible function application x end fraction$ is decreasing in its domain then $K E$

The function $f space left parenthesis x right parenthesis equals 1 plus 1 over x$ is

We have to see the rules for a increasing and decreasing function.

The function $f space left parenthesis x right parenthesis equals 1 plus 1 over x$ is

We have to see the rules for a increasing and decreasing function.

parallel

If $l to the power of 2 end exponent plus m to the power of 2 end exponent equals 1$ then the maximum value of $l plus m$ is

If $l to the power of 2 end exponent plus m to the power of 2 end exponent equals 1$ then the maximum value of $l plus m$ is

The minimum value of the function $f space left parenthesis x right parenthesis equals 3 t a n invisible function application x plus 4 c o t invisible function application x$ where $x element of open parentheses 0 comma fraction numerator pi over denominator 2 end fraction close parentheses$ is

The minimum value of the function $f space left parenthesis x right parenthesis equals 3 t a n invisible function application x plus 4 c o t invisible function application x$ where $x element of open parentheses 0 comma fraction numerator pi over denominator 2 end fraction close parentheses$ is

In the experiment of potentiometer wire $A B$ is 100 cm long shown in figure When AC=40 cm, no deflection occurs in the galvanometer. What is the value of R ?

In the experiment of potentiometer wire $A B$ is 100 cm long shown in figure When AC=40 cm, no deflection occurs in the galvanometer. What is the value of R ?

physics-General

parallel

Consider the potentiometer circuit shown. The potentiometer wire is 600 cm long and having restance 15r At what distance from the point A should the jockey touch the wire to get zero deflection in the galvanometer?

Consider the potentiometer circuit shown. The potentiometer wire is 600 cm long and having restance 15r At what distance from the point A should the jockey touch the wire to get zero deflection in the galvanometer?

physics-General

Circuit for the measurement of resistance by potentiometer is shown. The galvanometer is first connected at point-A and zero-deflection is observed at length PJ=10 cm. In the second case, it is connected at a point $C$ and zero deflection is observed at a length $30 text end text c m$ from P. Then what is the unknown resistance X?

Circuit for the measurement of resistance by potentiometer is shown. The galvanometer is first connected at point-A and zero-deflection is observed at length PJ=10 cm. In the second case, it is connected at a point $C$ and zero deflection is observed at a length $30 text end text c m$ from P. Then what is the unknown resistance X?

physics-General

The current taken from the 30 V supply and the current through the 6 $capital omega$ resistor are respectively.

The current taken from the 30 V supply and the current through the 6 $capital omega$ resistor are respectively.

physics-General

parallel

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