Question

Rashi of height 135cm is walking away from the base of a lamp post at a speed of 1.2m/s if the lamp is 3.6m above the ground
Q1.1 What will be the length of her shadow after 4 seconds?
A) 1.44m
B) 2.80m
C) 2.88m
D) 1.35m
Q1.2 What is the minimum time after which her shadow will become larger than her original height?
A) 1 sec
B) 2 sec
C) 3 sec
D) 4 sec
Q1.3 Which similarity criterion is used in solving the above problem
A) SAS similarity criterion
B) AA similarity criterion
C) SSS similarity criterion
D) none of above

Answer 1

Answer:

1. 1.35m
2. 4 sec
3. AA similarity criterion