Physics-
General
Easy
Question
With what acceleration ‘a’ shown the elevator descends so that the block of mass M exerts a force of 
on the weighing machine? [g = acceleration due to gravity]
- 0.3 g
- 0.1 g
- 0.9g
- 0.6 g
The correct answer is: 0.9g
Related Questions to study
physics-
An astronaut accidentally gets separated out of his small spaceship accelerating in inter-stellar space at a constant acceleration of 10 m/
. What is the acceleration of the astronaut at the instant he is outside the spaceship ?
An astronaut accidentally gets separated out of his small spaceship accelerating in inter-stellar space at a constant acceleration of 10 m/ . What is the acceleration of the astronaut at the instant he is outside the spaceship ?
physics-General
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The two diodes A and B are biased as shown, then
The two diodes A and B are biased as shown, then
physics-General
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The value of current in the following diagram will be:
The value of current in the following diagram will be:
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The value of current in the adjoining diagram will be:
The value of current in the adjoining diagram will be:
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physics-
A semiconductor P-N junction is to be forward biased with a battery of e.m.f. 1.5 Volt. If a potential difference of 0.5V appears on the junction which does not depend on current and on passing 10mA current through the junction there occurs huge Joule loss, then to use the junction at 5mA current, the resistance required to be connected in its series will be:
A semiconductor P-N junction is to be forward biased with a battery of e.m.f. 1.5 Volt. If a potential difference of 0.5V appears on the junction which does not depend on current and on passing 10mA current through the junction there occurs huge Joule loss, then to use the junction at 5mA current, the resistance required to be connected in its series will be:
physics-General
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(Where [ ] denotes GIF) is equal to
(Where [ ] denotes GIF) is equal to
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In Find the maximum angle of deviation for a prism with angle 
and 
= 1.5, If a constant magnetic field of strength 
T is applied parallel to the metal surface, then the radius of the largest circular path followed by the electrons will be :
In Find the maximum angle of deviation for a prism with angle and = 1.5, If a constant magnetic field of strength T is applied parallel to the metal surface, then the radius of the largest circular path followed by the electrons will be :
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A quadratic equation f(x) = ax2 + bx + c = 0 has positive distinct roots reciprocal of each other .Which one is correct ?
A quadratic equation f(x) = ax2 + bx + c = 0 has positive distinct roots reciprocal of each other .Which one is correct ?
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The sun deliverse 
of electromagnetic flux to the earth's surface. The total power that is incident on a roof of dimensions 8m ,20m, will be:
The sun deliverse of electromagnetic flux to the earth's surface. The total power that is incident on a roof of dimensions 8m ,20m, will be:
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If 
are the eccentric angles of the extremities of a focal chord of the ellipse 
, then tan 
If are the eccentric angles of the extremities of a focal chord of the ellipse , then tan
maths-General
maths-
If P(
), Q 
are points on ellipse and 
is angle between normals at P and Q then -
If P(), Q are points on ellipse and is angle between normals at P and Q then -
maths-General
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The Maxwell's four equations are written as:
i) 
ii) 
iii) 
iv) 
The equations which have sources of 
and 
The Maxwell's four equations are written as:
i)
ii)
iii)
iv)
The equations which have sources of and
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The line x cos + y sin = p touches the ellipse 
, if :
The line x cos + y sin = p touches the ellipse , if :
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maths-
If and 
are the eccentric angles of extremities of a focal chord of an ellipse, then the eccentricity of the ellipse is -
If and are the eccentric angles of extremities of a focal chord of an ellipse, then the eccentricity of the ellipse is -
maths-General
Maths-
If x cos + y sin = p is a tangent to the ellipse , then -
If x cos + y sin = p is a tangent to the ellipse , then -
Maths-General
