NDA 2017 Paper 2 | Physics Question 80 | General Science

NDA 2017 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

Bats detect obstacles in their path by receiving the reflected

infrasonic waves

ultrasonic waves

radio waves

microwaves

NDA 2017 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

The statement that 'heat cannot flow by itself from a body at a lower temperature to a body at a higher temperature', is known as

zeroth law of thermodynamics

first law of thermodynamics

second law of thermodynamics

third law of thermodynamics

NDA 2017 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

Which one of the following wave does not belong to the category of the other three?

X-rays

Microwaves

Radiowaves

Sound waves

NDA 2017 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

Which one of the following statements is not correct?

Human eye is a refracting system containing a diverging lens.

The retina of the human eye contains millions of light sensitive cells, called rods and cones, which convert the light into electrical messages.

Every image that is focused on the retina is upside down.

We need both eyes to judge the relative positions of objects accurtely.

NDA Subjects

English

General Science

General Studies