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Rotational Motion question

2025 · 4 Apr · Shift 1 · Q58
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  5. /2025 · 4 Apr · Shift 1 · Q58

Rotational Motion question

2025 · 4 Apr · Shift 1 · Q58

JEE MainPhysicsRotational MotionMCQ+4 / −1
Which of the following are correct expression for torque acting on a body? A. τ⃗=r⃗×L⃗\vec{\tau}=\vec{r} \times \vec{L}τ=r×L B. τ⃗=ddt(r⃗×p⃗)\vec{\tau}=\frac{d}{d t}(\vec{r} \times \vec{p})τ=dtd​(r×p​) C. τ⃗=r⃗×dp⃗dt\vec{\tau}=\vec{r} \times \frac{d \vec{p}}{d t}τ=r×dtdp​​ D. τ⃗=Iα⃗\vec{\tau}=I \vec{\alpha}τ=Iα E. τ⃗=r⃗×F⃗\vec{\tau}=\vec{r} \times \vec{F}τ=r×F(r⃗=\vec{r}=r= position vector; p⃗=\vec{p}=p​= linear momentum; L⃗=\vec{L}=L= angular momentum; α⃗=\vec{\alpha}=α= angular acceleration; I=I=I= moment of inertia; F⃗=\vec{F}=F= force; t=t=t= time) Choose the correct answer from the options given below:
  1. A
    A, B, D and E Only
  2. B
    C and D Only
  3. C
    B, C, D and E Only
  4. D
    B, D and E Only
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