Question

Two spheres $A$ and $B$ are placed between two vertical wall as shown in figure. Friction is absent everywhere. The ratio of $N_A$ to $N_B$ is

• A. $1:1$
• B. $2:1$
• C. $4:2$
• D. $Cannotbedetermined$

Answer 1

The correct option is A $1:1$

$N_A=R_{1}cos\theta N_B=R_{2}cos\theta \therefore \frac{N_A}{N_B}=\frac{R_{1}cos\theta }{R_{2}cos\theta }=\frac{1}{1}$