Question
Maths
Nov. 7, 2025, 4:40 a.m.
Answer
7. We wish to obtain an erect image of an object, using a concave mirror of local length 15 cm. What should be the range of distance of the object from the mirror? What is the nature of the image? Is the image larger or smaller than the object? Draw a ray diagram to show the image formation in this case.
Maths
Nov. 5, 2025, 12:16 p.m.
Answer
A can finish the work in 18 days and B can do the same work in 15 days.B alone worked for 10 days and left the job.If A alone has to finish the remaining work the number of days it takes is
Maths
Nov. 5, 2025, 10:34 a.m.
Answer
Rahul goes from one place to another and return by the same route. He pedals his way uniformly with speed u with going and v while returning.what is the average speed of his journey
Maths
Nov. 4, 2025, 8:36 p.m.
Answer
A man observer of car from the top of a tower, which is moving towards the tower with a uniform speed . If the angle of depression of the car change from 30° to 45° in 12 minutes. Find the time taken by the car now to reach the tower
Maths
Nov. 3, 2025, 7:32 p.m.
Answer