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Satkriti Roao
@satkriti-roao
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Joined: Jun 14, 2021
Last seen: Aug 6, 2021
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Topics: 2248 / Replies: 1
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Topic
A right circular cylinder just encloses a sphere of radius r (see fig.). Find (i) surface area of the sphere, (ii) curved surface area of the cylinder,
5 years ago
Forum
Surface Areas and Volumes
Replies: 0
Views: 281
Topic
A hemispherical bowl is made of steel, 0.25 cm thick. The inner radius of the bowl is 5cm. Find the outer curved surface of the bowl.
5 years ago
Forum
Surface Areas and Volumes
Replies: 0
Views: 379
Topic
The diameter of the moon is approximately one fourth of the diameter of the earth. Find the ratio of their surface areas.
5 years ago
Forum
Surface Areas and Volumes
Replies: 0
Views: 427
Topic
Find the radius of a sphere whose surface area is 154 cm^2.
5 years ago
Forum
Surface Areas and Volumes
Replies: 0
Views: 316
Topic
A hemispherical bowl made of brass has inner diameter 10.5 cm. Find the cost of tin-plating it on the inside at the rate of Rs 16 per 100 cm^2.
5 years ago
Forum
Surface Areas and Volumes
Replies: 0
Views: 453
Topic
The radius of a spherical balloon increases from 7 cm to 14 cm as air is being pumped into it. Find the ratio of surface areas of the balloon in the two cases.
5 years ago
Forum
Surface Areas and Volumes
Replies: 0
Views: 209
Topic
Find the total surface area of a hemisphere of radius 10 cm. [Use π = 3.14]
5 years ago
Forum
Surface Areas and Volumes
Replies: 0
Views: 154
Topic
The organism, used for alcoholic fermentation, is
5 years ago
Forum
Biology
Replies: 0
Views: 367
Topic
Which of the following is not correctly matched? (1) covered smut of barley - Ustilago nuda
5 years ago
Forum
Biology
Replies: 0
Views: 83
Topic
The chemical compounds produced by the host plants to protect themselves against fungal infection is
5 years ago
Forum
Biology
Replies: 0
Views: 109
Topic
White rust disease is caused by (1) Phytophthora (2) Claviceps (3) Albugo candida (4) Alternaria
5 years ago
Forum
Biology
Replies: 0
Views: 80
Topic
Mycorrhiza represents (1) symbiosis (2) antagonism (3) parasitism (4) endemism
5 years ago
Forum
Biology
Replies: 0
Views: 93
Topic
The plasmid (1) is a component of cell wall of bacteria (2) helps in respiration
5 years ago
Forum
Biology
Replies: 0
Views: 131
Topic
Which of the following organism possesses characteristics of both a plant and an animal?
5 years ago
Forum
Biology
Replies: 0
Views: 109
Topic
The function of contractile vacuole, in protozoa, is
5 years ago
Forum
Biology
Replies: 0
Views: 291
Topic
Macro and micronucleus are the characteristic feature of
5 years ago
Forum
Biology
Replies: 0
Views: 416
Topic
Protists obtain food as
5 years ago
Forum
Biology
Replies: 0
Views: 258
Topic
Protista includes (1) chemoautotrophs (2) heterotrophs
5 years ago
Forum
Biology
Replies: 0
Views: 133
Topic
Ustilago caused plant diseases called smut because
5 years ago
Forum
Biology
Replies: 0
Views: 137
Topic
Claviceps purpurea is causal organism of
5 years ago
Forum
Biology
Replies: 0
Views: 75
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