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A hollow sphere of internal and external diameter 4 cm and 8cm respectively is melted into a cone of base diameter 8 cm. The height of the cone is
Volume of hollow sphere: V_sphere = (4/3)π(R³ - r³) = (4/3)π(4³ - 2³) = (224/3)π. Volume of cone: V_cone = (1/3)πr²h = (1/3)π(4²)h. Equating volumes: (224/3)π = (1/3)π(16)h → 224 = 16h → h = 14 cm. This question related to Chapter 12 Mathematics Class 10th NCERT. From the Chapter 12. Surface Areas aRead more
Volume of hollow sphere:
V_sphere = (4/3)π(R³ – r³) = (4/3)π(4³ – 2³) = (224/3)π.
Volume of cone:
V_cone = (1/3)πr²h = (1/3)π(4²)h.
Equating volumes:
(224/3)π = (1/3)π(16)h → 224 = 16h → h = 14 cm.
This question related to Chapter 12 Mathematics Class 10th NCERT. From the Chapter 12. Surface Areas and Volumes. Give answer according to your understanding.
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Which of the following is an example of a tree?
The correct answer is (B) Mango. Mango is a large, perennial tree that belongs to the genus Mangifera. It produces sweet, edible fruits and has a long lifespan. In contrast, rose is a shrub, tulsi is a herb and tomato is a small plant. For more visit here: https://www.tiwariacademy.in/ncert-solutionRead more
The correct answer is (B) Mango. Mango is a large, perennial tree that belongs to the genus Mangifera. It produces sweet, edible fruits and has a long lifespan. In contrast, rose is a shrub, tulsi is a herb and tomato is a small plant.
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See lesshttps://www.tiwariacademy.in/ncert-solutions/class-6/science/
What type of root system does wheat have?
The correct answer is: (B) Fibrous root Wheat has a fibrous root system, where numerous thin roots spread out from the base of the stem, providing strong anchorage and efficient absorption of water and nutrients. For more visit here: https://www.tiwariacademy.in/ncert-solutions/class-6/science/
The correct answer is:
(B) Fibrous root
Wheat has a fibrous root system, where numerous thin roots spread out from the base of the stem, providing strong anchorage and efficient absorption of water and nutrients.
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Which scientist is known as the Birdman of India?
The correct answer is: (A) Salim Ali Salim Ali was an Indian ornithologist and naturalist, widely known as the "Birdman of India." He made significant contributions to the study of birds in India and played a key role in bird conservation. For more visit here: https://www.tiwariacademy.in/ncert-soluRead more
The correct answer is:
(A) Salim Ali
Salim Ali was an Indian ornithologist and naturalist, widely known as the “Birdman of India.” He made significant contributions to the study of birds in India and played a key role in bird conservation.
For more visit here:
See lesshttps://www.tiwariacademy.in/ncert-solutions/class-6/science/
Which animals live in both land and water?
The correct answer is: (B) Amphibians Amphibians, like frogs, salamanders, and newts, live both on land and in water at different stages of their lives. For more visit here: https://www.tiwariacademy.in/ncert-solutions/class-6/science/
The correct answer is:
(B) Amphibians
Amphibians, like frogs, salamanders, and newts, live both on land and in water at different stages of their lives.
For more visit here:
See lesshttps://www.tiwariacademy.in/ncert-solutions/class-6/science/