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What do you mean by H = I²RT?

Answer: The joule’s first law shows the relationship between heat produced by flowing electric current through a conductor. Q = I2 R T... View Article

Use Euclid’s division algorithm to find HCF of 399 and 56.

Answer: According to Euclid’s Division Lemma if we have two positive integers a and b, then there exist unique integers q and r which... View Article

Describe a figure of a closed curve that is not a polygon.

Answer: The shapes are closed by line-segments or by a curved line is known as closed curves. Examples of closed curves include triangles,... View Article

Which animal is called a connecting link between Reptiles and Mammals?

Answer: Duck-billed platypus A semi-aquatic egg-laying mammal discovered in Tasmania and Australia is the duck-billed platypus. It is a... View Article

How many millions make three crores?

Answer: 3 crores = 30 million In the Indian numbering system, the term lakh and crore are expressed as 1 lakh = 1,00,000 1 crore = 1,00,00,000... View Article

Write the difference between tropism and nastic movement.

Answer: Tropisms movement and nastic movements are both plants in response to external stimuli, but tropisms are relying on the path of the... View Article

Without actually performing the long division, find if 987/10500 will have terminating or nonterminating repeating decimal expansion. Give a reason for your answer.

Answer: Given number 98710500 Let us find the HCF of the 987 and 10500. 987 = 3 × 7 × 47 10500 = 2 × 2 × 3 × 5 × 5 × 5 × 7 HCF of (987,... View Article

What is 2648 to two significant figures?

Answer: 2600 Laws regulating Significant figures are as follows. Any number which is not zero is significant. Any zero between two integers that... View Article

Which one of the following is obtained from Coal Tar? (1) Petrol (2) Coke (3) Air (4) Naphthalene balls

Answer: (4) Naphthalene balls Coal tar also produces naphthalene balls used to resist insects and other insects. A bitumen petroleum product is... View Article

Nondividing cells produced from meristems are called (1) permanent tissue (2) epidermis (3) bark tissue (4) parenchyma

Answer: (1) permanent tissue Permanent tissue cells generated by meristematic tissues grow and are differentiated upon maturity to perform... View Article

What is protective food?

Answer: Foods containing adequate amounts of vitamins, minerals and high quality proteins, such as leafy or yellow vegetables, citrus fruits,... View Article

One of the Following Does Not Reproduce by Spore Formation Method. (1) Rhizopus Fungus (2) Penicillium Fungus (3) Yeast Fungus (4) Mucor Fungus

Answer: (3 Yeast Fungus Structures called sporangia create tiny cells called spores in the spore forming process. When the spores make contact... View Article

What is diadelphous stamen?

Answer: Diadelphous androecium develops in two bundles or groups when the filaments of the stamens are fused. It is seen in the flowers of... View Article

A machine used for cutting the matured crop is ___?

Answer: A machine used for cutting the matured crop is Harvester. Crop production is the process of growing crops for domestic and... View Article

Write the balanced equation when phosphorus burns in oxygen to form phosphorus pentoxide.

Answer: The representation of a chemical reaction in the form of substances is known as a chemical equation. The equation in which the number... View Article

The surface tension of lyophilic sols is (1) lower than that of H₂O (2) more than that of H₂O (3) equal to that of H₂O (4) either less or more than H₂O depending upon the nature of the disperse phase.

Answer: (1) lower than that of H₂O Lyophilic sols are those where the substances have a high affinity for the dispersion medium and thus easily... View Article

Annual rings are the number of (1) Internodes in a stem (2) Rings of vascular bundles in a monocot stem. (3) Barks layers in a woody stem. (4) Layers of Xylem in a stem.

Answer: (4) Layers of Xylem in a stem The tree forms new cells annually, organized in concentric circles termed as annual rings or rings of... View Article

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