Question

247- इसके आगे व पीछे की दो संख्या लिख इसके सामने >(व)< का चिन्ह दें।​

Answer 1

Answer:

jaiaiejjejdjfiidiiwh3hrhdudiiwh3br

Answer 2

Answer:

1. A person is standing between two vertical mountains. the person fire a gun then hears the first echo from the nearby mountain in a time 3 second and here second echo from far mountain in a time 4 second. What is the distance between two mountains?

2. A boy is standing between two walls. the wall closer to him is at the distance of 680 m. if he shouts , he hears the first echo after 4 second and another after 2 second. What is the velocity of sound in air and what is the distance between two walls.