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What was the main goal of the Great Leap Forward initiated by Mao Zedong?

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Important Questions on Trigonometric Functions

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Mathematics>Trigonometry>Trigonometric Functions>Angles
Consider a triangular plot ABC with sides AB=7 m, BC=5 m and CA=6 m. A vertical lamp-post at the mid-point D of AC subtends an angle 30° at B. The height (in m) of the lamp-post is:
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A bird is sitting on the top of a vertical pole 20 m high and its elevation from a point O on the ground is 45°. It flies off horizontally straight away from the point O. After one second, the elevation of the bird from O is reduced to 30°. Then the speed (in m/s) of the bird is 
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Mathematics>Trigonometry>Trigonometric Functions>Angles
If the angle of elevation of a cloud from a point P which is 25m above a lake be 30° and the angle of depression of reflection of the could in the lake from P be 60°, then the height of the cloud (in meters) from the surface of the lake is :
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A person throws two fair dice. He wins Rs. 15 for throwing a doublet (same numbers on the two dice), wins Rs 12 when the throw results in the sum of 9 , and loses Rs. 6 for any other outcome on the throw. Then the expected gain/loss (in Rs.) of the person is:
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Mathematics>Trigonometry>Trigonometric Functions>Angles

Match the physical quantities with their correct SI units.

  List-I   List-II
(A) Planck's constant (I) kg m s-2
(B) Torque (II) kg-1 m3
(C) Weight (III) m2 kg s-1
(D) Specific volume (IV) kg m2 s-2

The correct match is

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Mathematics>Trigonometry>Trigonometric Functions>Angles
Which of the following are Lewis acids?
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The conjugate bases of Bronsted acids H2O and HCl are respectively:
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Mathematics>Trigonometry>Trigonometric Functions>Angles
In the following reactions, ZnO is respectively acting as a/an,

(i) ZnO+Na2O→Na2ZnO2

(ii) ZnO+CO2→ZnCO3
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Plasticity in plant growth means that
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Mathematics>Trigonometry>Trigonometric Functions>Angles
Plasticity in plant growth means that:
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Mathematics>Trigonometry>Trigonometric Functions>Angles
Define plasticity. Give an example.
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What is plasticity?
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Mathematics>Trigonometry>Trigonometric Functions>Angles

Different kinds of structures develop in plants in different phases of growth or in response to environment as shown in figure below. This ability is called _____.

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Mathematics>Trigonometry>Trigonometric Functions>Angles
Define plasticity.
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Mathematics>Trigonometry>Trigonometric Functions>Angles
Which one of the following statements is true for the phytochrome
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Mathematics>Trigonometry>Trigonometric Functions>Angles
Define growth, differentiation, development, dedifferentiation, redifferentiation, determinate growth, meristem and growth rate.
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Mathematics>Trigonometry>Trigonometric Functions>Angles
Define vivipary.
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What is sigmoid curve?
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Differentiate between developmental and environmental heterophylly.
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Mention what do you understand by the term plasticity in plants. Is it followed by every plant? What is the function of heteroblastic development in plants?