NDA 2019 Paper 2 | Physics Question 192 | General Science

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NDA 2019 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

Compared to audible sound waves, ultrasound waves have

higher speed

higher frequency

Both (a) and (b)

long wavelength

NDA 2019 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

A rigid body of mass 2 kg is dropped from a stationary balloon kept at a height of 50 m from the ground. The speed of the body when it just touches the ground and the total energy when it is dropped from the balloon are respectively. (Take, acceleration due to gravity, g = 9.8 m/s²)

980 ms^$$-$$1 and 980 J

$$\sqrt {980} $$ ms^$$-$$1 and $$\sqrt {980} $$ J

980 ms^$$-$$1 and $$\sqrt {980} $$ J

$$\sqrt {980} $$ ms^$$-$$1 and 980 J

NDA 2019 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

The temperature of a place on one sunny day is 113 in Fahrenheit scale. The Kelvin scale reading of this temperature will be

318 K

45 K

62.8 K

335.8 K

NDA 2019 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

Radiations coming from the sun are mostly in the form of

light only

light and long wavelength infrared

light and short wavelength infrared

Both short and long wavelength infrared

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Questions Asked from Marks 2.5