Physics
2 kg stone at the end of a string 1m long is whirled in a vertical circle at a constant speed. The speed of the stone is 4 m /sec. The tension in the string will be 52 N when the stone is-
PhysicsGeneral
- half way down
- at the bottom of the circle
- none of the above
- at the top of the circle
Answer:The correct answer is: at the bottom of the circle
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The roadway of a bridge over a canal is in the form of a circular arc of radius 18 m. What is the greatest speed with which a motor cycle can cross the bridge without leaving ground.
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physicsGeneral
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physicsGeneral
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biology
Alkaline pyrogallic acid is used for absorbing _______ during experiments on germination
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biologyGeneral
biology
This artery passes blood to the kidney is:
Uricotelism is found in those animals, which need water conservation. It is the elimination of uric acid and urates as the main nitrogenous wastes in the form of paste or in a semisolid state
This artery passes blood to the kidney is:
biologyGeneral
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maths-
The domain of the function 
is
The domain of the function is
maths-General
biology
Which one of the following pairs is mismatched?
Pearl is obtained from pearl oyster (Pinctadavulgaris), while honey from Apisindica, lac from Kenialacca and silk from Bombyxmori.
Which one of the following pairs is mismatched?
biologyGeneral
Pearl is obtained from pearl oyster (Pinctadavulgaris), while honey from Apisindica, lac from Kenialacca and silk from Bombyxmori.
botany
Statement 1: Libriformfibres are true fibres.
Statement 2: Libriformfibres develop from non-functional tracheids by reduction.
When the fibres possess very thick walls and reduced simple pits they are known as libriform wood fibres because of their similarity to phloem fibres. Libriform wood fibres chiefly occur in woody dicotyledons. There are many transitional forms between fibres and normal tracheids, these transitional forms are designated as fibretracheids. A line of demarcation cannot be drawn between tracheids and fibretracheids
Statement 1: Libriformfibres are true fibres.
Statement 2: Libriformfibres develop from non-functional tracheids by reduction.
botanyGeneral
When the fibres possess very thick walls and reduced simple pits they are known as libriform wood fibres because of their similarity to phloem fibres. Libriform wood fibres chiefly occur in woody dicotyledons. There are many transitional forms between fibres and normal tracheids, these transitional forms are designated as fibretracheids. A line of demarcation cannot be drawn between tracheids and fibretracheids
botany
Statement 1: In collateral vascular bundles, the phloem is situated towards inner side.
Statement 2:In monocot stem, cambium is present.
In collateral vascular bundles, phloem is situated towards outer side and xylem towards inner side and both are found on same radii, but in monocot stem, vascular bundles are closed, i.e., cambium is absent.
Statement 1: In collateral vascular bundles, the phloem is situated towards inner side.
Statement 2:In monocot stem, cambium is present.
botanyGeneral
In collateral vascular bundles, phloem is situated towards outer side and xylem towards inner side and both are found on same radii, but in monocot stem, vascular bundles are closed, i.e., cambium is absent.