NSO Level 1- Science Olympiad (SOF) Class 9: Questions 676 - 679 of 1128

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Question 676

Question

MCQ▾

The basic idea of Paramanu was introduced by the scientist

Choices

Choice (4)Response

a.

Maharshi Kanad

b.

Pakudha Katyayama

c.

Democritus

d.

Leucippus

Question 677

Question

MCQ▾

Nine people are planning to share equally the cost of a rental car. If one person withdraws from the arrangement and the others share equally the entire cost of the car, then the share of each of the remaining persons increased by:

Choices

Choice (4)Response

a.

b.

c.

d.

Question 678

Question

MCQ▾

Identify the Atom Models from the given clue

1. Electrons are embedded in a positively charged sphere.

2. An atom consists of a positively charged nucleus at the centre. Electrons revolve round the nucleus in well-defined orbits.

3. There are certain orbits known as discrete orbits or shells in which electrons revolve around the nucleus.

Choices

Choice (4)Response

a.

1. Rutherford՚s Model, 2. Thomson՚s Model, 3. Bohr՚s Model

b.

1. Thomson՚s Model, 2. Bohr՚s Model, 3. Rutherford՚s Model

c.

1. Thomson՚s Model, 2. Rutherford՚s Model, 3. Bohr՚s Model

d.

1. Bohr՚s Model, 2. Thomson՚s Model, 3. Rutherford՚s Model

Question 679

Question

MCQ▾

The temperature at which a solid changes into its liquid form is called

Choices

Choice (4)Response

a.

condensation point

b.

freezing point

c.

boiling point

d.

melting point

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