Physics-
General
Easy
Question
A block of mass of 10 kg lies on a rough inclined plane of inclination
with the horizontal when a force of 30N is applied on the block parallel to and upward the plane, the total force exerted by the plane on the block is nearly along (coefficient of friction is
=
) ( g = 10 m/
)

- OA
- OB
- OC
- OD
The correct answer is: OB
Related Questions to study
physics-
A block of mass 3 kg is at rest on a rough inclined plane as shown in the figure. The magnitude of net force exerted by the surface on the block will be (g=10 m/
)

A block of mass 3 kg is at rest on a rough inclined plane as shown in the figure. The magnitude of net force exerted by the surface on the block will be (g=10 m/
)

physics-General
Maths-
If
then the vectors
and 
The vectors
are given as follows:

Let the other three vectors be denoted as



We have to find the relation between the vectors.
Now, we will first find the components of the vectors


So, the vectors become.

Now, we will take their dot product to check if they are mutually perpendicular or not.


So, the given vectors are perpendicular.
If we see all the vectors are perpendicular to each other.
The given vectors are mutually perpendicular.
Let the other three vectors be denoted as
We have to find the relation between the vectors.
Now, we will first find the components of the vectors
So, the vectors become.
Now, we will take their dot product to check if they are mutually perpendicular or not.
So, the given vectors are perpendicular.
If we see all the vectors are perpendicular to each other.
The given vectors are mutually perpendicular.
If
then the vectors
and 
Maths-General
The vectors
are given as follows:

Let the other three vectors be denoted as



We have to find the relation between the vectors.
Now, we will first find the components of the vectors


So, the vectors become.

Now, we will take their dot product to check if they are mutually perpendicular or not.


So, the given vectors are perpendicular.
If we see all the vectors are perpendicular to each other.
The given vectors are mutually perpendicular.
Let the other three vectors be denoted as
We have to find the relation between the vectors.
Now, we will first find the components of the vectors
So, the vectors become.
Now, we will take their dot product to check if they are mutually perpendicular or not.
So, the given vectors are perpendicular.
If we see all the vectors are perpendicular to each other.
The given vectors are mutually perpendicular.
physics-
In the shown situation, which of the following is/are possible ?

If F1 ¹ F2 , then system will move with acceleration so spring force ¹0
If F1 = 40 N & F2 = 60 N then
and spring force F1 + m1 a =
(60) = 52 N
If F1 = 60 N & F2 = 40 N then spring force = 52 N
If F1 = 40 N & F2 = 60 N then
If F1 = 60 N & F2 = 40 N then spring force = 52 N
In the shown situation, which of the following is/are possible ?

physics-General
If F1 ¹ F2 , then system will move with acceleration so spring force ¹0
If F1 = 40 N & F2 = 60 N then
and spring force F1 + m1 a =
(60) = 52 N
If F1 = 60 N & F2 = 40 N then spring force = 52 N
If F1 = 40 N & F2 = 60 N then
If F1 = 60 N & F2 = 40 N then spring force = 52 N
physics-
A block of mass m = 2 kg is resting on a rough inclined plane of inclination 300 as shown in figure. The coefficient of friction between the block and the plane is
= 0.5. What minimum force F should be applied perpendicular to the plane on the block, so that block does not slip on the plane (g=10m/
)

A block of mass m = 2 kg is resting on a rough inclined plane of inclination 300 as shown in figure. The coefficient of friction between the block and the plane is
= 0.5. What minimum force F should be applied perpendicular to the plane on the block, so that block does not slip on the plane (g=10m/
)

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physics-
A block of mass of 10 kg lies on a rough inclined plane of inclination
with the horizontal when a force of 30N is applied on the block parallel to and upward the plane, the total force exerted by the plane on the block is nearly along (coefficient of friction is
=
) ( g = 10 m/
)

A block of mass of 10 kg lies on a rough inclined plane of inclination
with the horizontal when a force of 30N is applied on the block parallel to and upward the plane, the total force exerted by the plane on the block is nearly along (coefficient of friction is
=
) ( g = 10 m/
)

physics-General
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A block of mass 3 kg is at rest on a rough inclined plane as shown in the figure. The magnitude of net force exerted by the surface on the block will be (g=10 m/
)

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)

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As shown in figure, the left block rests on a table at distance null = Normal reaction between A & B
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As shown in figure, the left block rests on a table at distance from the edge while the right block is kept at the same level so that thread is unstretched and does not sag and then released. What will happen first ?
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If the string is pulled down with a force of 120 N as shown in the figure, then the acceleration of 8 kg block would

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With what acceleration ‘a’ shown the elevator descends so that the block of mass M exerts a force of
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An astronaut accidentally gets separated out of his small spaceship accelerating in inter-stellar space at a constant acceleration of 10 m/
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When the astronaut is outside the spaceship, the net external force (except negligible gravitational force due to spaceship) is zero as he is isolated from all interactions.
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The two diodes A and B are biased as shown, then

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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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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