Question

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

## The correct answer is:

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### A tank contains two different liquids which do not mix with each other as shown in figure. The lower and upper liquids are at depths and respectively. An object O is located at the bottom. When seen vertically from above, locate the position of image of O.

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

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

### 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.....

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### is decreasing in

We should know the formulas of differentiation. And, we should know the condition for increasing and decreasing function.

### is decreasing in

We should know the formulas of differentiation. And, we should know the condition for increasing and decreasing function.

### The interval of increase of the function is

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

### The interval of increase of the function is

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

### In experiment of the potentiometer wire of length 100 cm has a resistance of 10, 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 of length 100 cm has a resistance of 10, 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?

### The function is

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

### The function is

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

### If the function is decreasing in its domain then

### If the function is decreasing in its domain then

### The function is

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

### The function is

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