This man observed birds in flight, and designed a flying machine.
A) Write brothers
B) Leonardo da Vinci
C) Luther king
D) None of these
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A simple astronomical telescope is designed using two convex lenses of focal lengths 1 m and `0.05`m. Find the magnifying power when the instrument is
Correct Answer - (a) 20, (b)24
2 Answers 1 views
1. The strategy is designed to improve the economic and social life of a specific group of people.
1. Rural Development 2. tertiary sector 3. final consumers 4. traders, professionals and technicians 5. economic growth
2 Answers 1 views
In a thin film between two points A and B, eight fringes are observed with light of wavelength 5461 Å. How many fringes will be observed between the s
Correct Answer - 6.72 fringes
2 Answers 1 views
Following birds are observed in the tropical desert biome-
Correct Answer is (a) Vulture
2 Answers 4 views
Machine A can produce 6 items per hour and machine B can produce 11 items per hours. If machine A works for x hours and B works for y hours in a day a
Correct Answer - `6x + 11y le 200`
2 Answers 1 views
The machine is a program or group of programs designed for end-users.
1. False 2. False
2 Answers 1 views
A manufacturer produces pend and pencils. It takes 1 hour of work on machine A and 2 hours on machine B to produce a package of pens while it take 2 h
Correct Answer - The manufacturer can manufacure 4 packages of each pens and pencils daily to obtain the maximum profit Rs. 28
2 Answers 1 views
This man observed birds in flight, and designed a flying machine.
B) Leonardo da Vinci
2 Answers 1 views
Why dispersion of light is not observed in glass slab but it is observed in prism?
When a light passes from one medium to another, at one interface, it changes its speed. The glass slab and prism both have two glass air interfaces. Hence, the light undergoes refraction...
2 Answers 1 views
Darwin observed the variations in Finch birds ……………
D) Galapagos Islands
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