Physics-
General
Easy
Question
In the following diagram if 
then 
The correct answer is:
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The maximum kinetic energy (Ek ) of emitted photoelectrons against frequency v of incident radiation is plotted as shown in fig The slope of the graph is equal to
The maximum kinetic energy (Ek ) of emitted photoelectrons against frequency v of incident radiation is plotted as shown in fig The slope of the graph is equal to
physics-General
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In centre of the triangle formed by the lines y = x, y = 3x and y = 8 – 3x is
In centre of the triangle formed by the lines y = x, y = 3x and y = 8 – 3x is
maths-General
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A lamp rated at 100 cd hangs over the middle of a round table with diameter 3 m at a height of 2 m. It is replaced by a lamp of 25 cd and the distance to the table is changed so that the illumination at the centre of the table remains as before. The illumination at edge of the table becomes X times the original. Then X is
A lamp rated at 100 cd hangs over the middle of a round table with diameter 3 m at a height of 2 m. It is replaced by a lamp of 25 cd and the distance to the table is changed so that the illumination at the centre of the table remains as before. The illumination at edge of the table becomes X times the original. Then X is
physics-General
physics-
Five lumen/watt is the luminous efficiency of a lamp and its luminous intensity is 35 candela. The power of the lamp is
Five lumen/watt is the luminous efficiency of a lamp and its luminous intensity is 35 candela. The power of the lamp is
physics-General
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Lux is equal to
Lux is equal to
physics-General
physics-
A 60 watt bulb is hung over the center of a table 
at a height of 3 m. The ratio of the intensities of illumination at a point on the centre of the edge and on the corner of the table is
A 60 watt bulb is hung over the center of a table at a height of 3 m. The ratio of the intensities of illumination at a point on the centre of the edge and on the corner of the table is
physics-General
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If f(x) is a polynomial of degree five with leading coefficient one such that f(1)=12,f(2)=22,f(3)=32,f(4)=42,f(5)=52 then
If f(x) is a polynomial of degree five with leading coefficient one such that f(1)=12,f(2)=22,f(3)=32,f(4)=42,f(5)=52 then
maths-General
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If f(x) = ax2+ bx + c such that f(p) + f(q) = 0 where a
0 ; p , q
R then number of real roots of equation f(x) = 0in interval [p, q] is
If f(x) = ax2+ bx + c such that f(p) + f(q) = 0 where a0 ; p , qR then number of real roots of equation f(x) = 0in interval [p, q] is
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If f(x) is a differentiable function satisfying f(x+ y)= f(x)f(y) 
x, y R and f'(0)=2 then f(x)=
If f(x) is a differentiable function satisfying f(x+ y)= f(x)f(y) x, y R and f'(0)=2 then f(x)=
maths-General
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Maximum kinetic energy (Ek ) of a photoelectron varies with the frequency ( v ) of the incident radiation as
Maximum kinetic energy (Ek ) of a photoelectron varies with the frequency ( v ) of the incident radiation as
physics-General
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The degree of the differential equation satisfying 
is
The degree of the differential equation satisfying is
maths-General
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If 
then the solution of the equation is :
If then the solution of the equation is :
Maths-General
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A simple magnifying lens is used in such a way that an image is formed at 25 cm away from the eye. In order to have 10 times magnification, the focal length of the lens should be
A simple magnifying lens is used in such a way that an image is formed at 25 cm away from the eye. In order to have 10 times magnification, the focal length of the lens should be
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The differential equation of all circles which pass through the origin and whose centres lie on y-axis is
The differential equation of all circles which pass through the origin and whose centres lie on y-axis is
Maths-General
maths-
Let p, q{1,2,3,4}.Then number of equation of the form px2+qx+1=0,having real roots ,is
Let p, q{1,2,3,4}.Then number of equation of the form px2+qx+1=0,having real roots ,is
maths-General
