The dimension of angular momentum is
- $M^{0}L^{1}T^{-1}$
- $M^{1}L^{2}T^{-2}$
- $M^{1}L^{2}T^{1}$
- $M^{2}L^{1}T^{-2}$
The Correct Option is C
Solution and Explanation
$L = r \times p$
$=[ L ]\left[ MLT ^{-1}\right]=\left[ ML ^{2} T ^{-1}\right]$
Top Questions on momentum
- An object of mass \( m \) is projected from the origin in a vertical \( xy \)-plane at an angle \( 45^\circ \) with the x-axis with an initial velocity \( v_0 \). The magnitude and direction of the angular momentum of the object with respect to the origin, when it reaches the maximum height, will be:
Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Knowing the initial position \( x_0 \) and initial momentum \( p_0 \) is enough to determine the position and momentum at any time \( t \) for a simple harmonic motion with a given angular frequency \( \omega \).
Reason (R): The amplitude and phase can be expressed in terms of \( x_0 \) and \( p_0 \).
In the light of the above statements, choose the correct answer from the options given below:- The radiation of energy \( E \) falls normally on a perfectly reflecting surface. The momentum transferred to the surface is:
- The principle involved in the performance of a circus acrobat is the conservation of
- KEAM - 2024
- Physics
- momentum
- A particle moves under the influence of a force in the XY-plane such that the components of its linear momentum $\vec{p}$ at any time $t$ are given by $p_x = p \sin t$ and $p_y = p \cos t$. The angle between $\vec{F}$ and $\vec{p}$ at that time is
- KEAM - 2024
- Physics
- momentum
Questions Asked in WBJEE exam
- In the following sequence of reactions, compound 'M' is:
\( \text{M} \xrightarrow{\text{CH}_3\text{MgBr}} \text{N} + \text{CH}_4 \uparrow \xrightarrow{\text{H}^+} \text{CH}_3\text{COCH}_2\text{COCH}_3 \)
- WBJEE - 2024
- Organic Chemistry
Identify the ion having 4f\(^6\) electronic configuration.
- WBJEE - 2024
- Some Applications of d- and f-Block Elements
- Metallic conductors and semiconductors are heated separately. What are the changes in conductivity?
- WBJEE - 2024
- Conductivity-thermal and electrical
- The equivalent weight of \(\text{Na}_2\text{S}_2\text{O}_3\) (Gram molecular weight = \(M\)) in the given reaction is:
\[\text{I}_2 + 2 \text{Na}_2\text{S}_2\text{O}_3 \rightarrow 2 \text{NaI} + \text{Na}_2\text{S}_4\text{O}_6\]- WBJEE - 2024
- Redox reactions
- The reactivity order of the following molecules towards SN1 reaction is:
Allyl chloride (I), Chlorobenzene (II), Ethyl chloride (III)- WBJEE - 2024
- Reaction mechanisms
Concepts Used:
Momentum
It can be defined as "mass in motion." All objects have mass; so if an object is moving, then it is called as momentum.
the momentum of an object is the product of mass of the object and the velocity of the object.
Momentum = mass • velocity
The above equation can be rewritten as
p = m • v
where m is the mass and v is the velocity.
Momentum is a vector quantity and the direction of the of the vector is the same as the direction that an object.