Maths-
General
Easy
Question
The locus of points from which lengths of tangents to the two circles 
are in the ratio 2 : 3 is a circle with centre
- (6,0)
- (-6,0)
- (0,6)
- (0,-6)
The correct answer is: (-6,0)
Related Questions to study
chemistry-
A gas is found to have a density of 1.80 
at 760 mm pressure and 27ºC. The gas will be
A gas is found to have a density of 1.80 at 760 mm pressure and 27ºC. The gas will be
chemistry-General
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If X is the total number of collisions which a gas molecule registers with others per unit time under particular conditions, then the collision frequency of the gas containing N molecules per unit volume is
If X is the total number of collisions which a gas molecule registers with others per unit time under particular conditions, then the collision frequency of the gas containing N molecules per unit volume is
chemistry-General
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At 100ºC and 1 atm, if the density of liquid water is 1.0 g cm-3 and that of water vapour is 0.0006 g cm-3, then the volume occupied by water molecules in 1 litre of steam at that temperature is
At 100ºC and 1 atm, if the density of liquid water is 1.0 g cm-3 and that of water vapour is 0.0006 g cm-3, then the volume occupied by water molecules in 1 litre of steam at that temperature is
chemistry-General
physics-
Assertion : The equivalent resistance between the points X and Y in the figure, is 10 
Reason : According to wheat stone bridge points A and C have the same potential
Assertion : The equivalent resistance between the points X and Y in the figure, is 10
Reason : According to wheat stone bridge points A and C have the same potential
physics-General
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In the circuit shown in fig., the potential difference between the points C and D is balanced against 40 cm length of potentiometer wire of total length 100 cm. In order to balance the potential difference between the points D and E. The jockey be pressed on potentiometer wire at a distance of
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physics-General
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Three bulbs with their power and working voltage are connected as shown in the circuit diagram to a 12 V battery. The total power consumed by the bulbs is (ignore the internal resistance of the battery shown)
Three bulbs with their power and working voltage are connected as shown in the circuit diagram to a 12 V battery. The total power consumed by the bulbs is (ignore the internal resistance of the battery shown)
physics-General
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In the following circuit, 5 resistor develops 45 J/s due to current flowing through it. The power developed across 12W resistor is
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physics-General
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Find out the value of current through 2 resistance for the given circuit
Find out the value of current through 2 resistance for the given circuit
physics-General
physics-
The charge developed on 4 
F condenser is
The charge developed on 4 F condenser is
physics-General
physics-
For a cell, the graph between the p.d.(V) across the terminals of the cell and the current I drawn from the cell is shown in the fig. the emf and the internal resistance of the cell is E and r respectively
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physics-General
physics-
Equivalent resistance across A and B in the given circuit if r = 10 , R = 20 is
Equivalent resistance across A and B in the given circuit if r = 10 , R = 20 is
physics-General
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A part of circuit in steady state along with the currents flowing in the branches, the value of resistances is shown in figure. Calculate the energy stored in the capacitor
A part of circuit in steady state along with the currents flowing in the branches, the value of resistances is shown in figure. Calculate the energy stored in the capacitor
physics-General
physics-
In the steady state, the energy stored in the capacitor is
In the steady state, the energy stored in the capacitor is
physics-General
physics-
In Wheat stone’s bridge shown in the adjoining figure galvanometer gives no deflection on pressing the key, the balance condition for the bridge is :
In Wheat stone’s bridge shown in the adjoining figure galvanometer gives no deflection on pressing the key, the balance condition for the bridge is :
physics-General
physics-
A current of 0.10 A flows through the 25 resistor represented in the diagram to the right. The current through the 80W resistor is:
A current of 0.10 A flows through the 25 resistor represented in the diagram to the right. The current through the 80W resistor is:
physics-General
