Physics · 2020
JEE Main · 6 September 2020, Shift 2 · Q2
When a car is at rest, its driver sees rain drops falling on it vertically. When driving the car with speed v, he sees that rain drops are coming at…
When a car is at rest, its driver sees rain drops falling on it vertically. When driving the car with speed $\displaystyle v$, he sees that rain drops are coming at an angle $\displaystyle 60$° from the horizontal. On further increasing the speed of the car to $\displaystyle (1+\beta) v$, this angle changes to $\displaystyle 45$°. The value of $\displaystyle \beta$ is close to :
Official answer
(4)
$\displaystyle 0.73$
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JEE Main 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.