Physics [NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension]: Questions 66 - 70 of 73

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Question 66

Question MCQ▾

The tidal waves in the sea are primarily due to

Choices

Choice (4)Response

a.

The gravitational effect of the Sun on the Earth

b.

The atmosphere effect of the Earth itself

c.

The gravitational effect of Venus on the Earth

d.

The gravitational effect of the Moon on the Earth

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Question 67

Question MCQ▾

Which one among the following waves is called waves of heat energy?

Choices

Choice (4)Response

a.

Infrared waves

b.

Radio waves

c.

Microwaves

d.

Ultraviolet waves

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Question 68

Question MCQ▾

Graph of Distance (Km) vs. Time (Min)

What is the average speed between time 4 min and 20 min?

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 69

Question MCQ▾

Which of the following is the longitudinal wave?

Choices

Choice (4)Response

a.

Waves on plucked string

b.

Light waves

c.

Sound waves

d.

Water waves

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Question 70

Appeared in Year: 2013

Question MCQ▾

A geo-stationary satellite is orbiting around earth at height of 30,000 km in circular orbit. The radius of the earth is taken as 6000 km. The geo-stationary satellite comes back to its position after one revolution in exacity 24 h. Let the acceleration due to gravity (g) be 10 m/s2 and mass of satellite be 1000 kg, calculate the work done in 12 h when moving under gravitational force.

Choices

Choice (4)Response

a.

b.

c.

d.

Edit