The velocity (v) - time (t) plot of the motion of a body is shown below :

The acceleration (a) - time(t) graph that best suits this motion is :




Step 1: Analyze the Velocity-Time Graph
The slope of the velocity-time (v-t) graph represents acceleration. From the given plot:
The velocity increases linearly with time, implying constant acceleration.
Step 2: Match with the Acceleration-Time Graph
Since the acceleration is constant, the acceleration-time (a-t) graph must be a horizontal straight line.
Step 3: Conclusion
The correct acceleration-time graph is option (3) 
A wire of 60 cm length and mass 10 g is suspended by a pair of flexible leads in a magnetic field of 0.60 T as shown in the figure. The magnitude of the current required to remove the tension in the supporting leads is:

Given below are two statements:
Statement I: Transfer RNAs and ribosomal RNA do not interact with mRNA.
Statement II: RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defence.
In the light of the above statements, choose the most appropriate answer from the options given below: