Question

Analyse the following observation table
showing variation of image distance cv) with
object (4) in case of a convex. lens and
answer the question that follows.
​

Answer 1

Answer:

Given :-

Distance covered by the satellite = 450 km

Velocity of the satellite = 120 m/s

To Find :-

Time taken by the satellite.

Analysis :-

Here we are given with the distance and the speed of the satellite.

In order to find the time taken substitute the given values in the question accordingly such that time is equal to distance covered divided by the time taken.

Solution :-

We know that,

d = Distance

s = Speed

t = Time

Using the formula,

\underline{\boxed{\sf Time \ taken=\dfrac{Distance \ covered}{Time \ taken}}}

Time taken=

Time taken

Distance covered

Given that,

Distance (d) = 450 km = 450000

Speed (s) = 120 m/s

Substituting their values,

⇒ t = s/t

⇒ t = 450000/120

⇒ t = 45000/12

⇒ t = 3750 sec

Therefore, the time taken by the satellite is 3750 sec.