Question

प्रथम विश्व युद्ध में अमेरिका कब शामिल हुआ और क्यों (सब्दसिमा75-100)​

Answer 1

Answer:

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