If (k –3), (2k + 1) and (4k + 3) are three consecutive terms of an A.P
If (k –3), (2k + 1) and (4k + 3) are three consecutive terms of an A.P, find the value of k
The ratio between the number of molecules in 2g of hydrogen
The ratio between the number of molecules in 2g of hydrogen and 32g of oxygen is:
- 1:2
- 1:0.01
- 1:1
- 0.01:1 [Given that H=1, O=16]
Trees must be planted in the industrial areas
Give a reason: Trees must be planted in the industrial areas
With reference to black soil: Name one important crop which grows in this soil
With reference to black soil: Name one important crop which grows in this soil.
Name a manufacturing centre for each of the following industries
Name a manufacturing centre for each of the following industries:
- Aircraft
- HMT
- Railway coaches
The tendency of an atom to attract electrons to itself
Give one word or a phrase: The tendency of an atom to attract electrons to itself when combined in a compound.
In the given figure, ABCDE is a pentagon inscribed in a circle such that AC is a diameter
In the given figure, ABCDE is a pentagon inscribed in a circle such that AC is a diameter and side BC//AE. If ∠BAC = 50°, find giving reasons:
- ∠ACB
- ∠EDC
- ∠BEC
Hence prove that BE is also a diameter
There is frequent urination in winter than in summer
There is frequent urination in winter than in summer.
Give biological reasons
Give the names of two leaders who led the Home Rule Movement
Give the names of two leaders who led the Home Rule Movement in India.
State two reasons for the launching of the Quit India Movement
State two reasons for the launching of the Quit India Movement.
The process by which certain ores, specially carbonates
The process by which certain ores, specially carbonates, are converted to oxides in the absence of air.
The difference of two natural numbers is 7 and their product is 450
The difference of two natural numbers is 7 and their product is 450. Find the numbers.
From the top of a cliff, the angle of depression of the top and bottom of a tower
From the top of a cliff, the angle of depression of the top and bottom of a tower are observed to be 45 and 60° respectively. If the height of the tower is 20 m. Find:
- the height of the cliff
- the ...
Why tea bushes have to be pruned at regular intervals?
With reference to the cultivation of tea, Why tea bushes have to be pruned at regular intervals?
Name the state that produces the largest amount of limestone
Name the state that produces the largest amount of limestone