The Polaris remains below horizon at

The Polaris describes a small circle round the pole whose radius is approximately

A

1°

B

2°

C

3°

D

4°

Polaris is usually observed for the determination of the latitude when it is

A

At culmination

B

At elongation

C

Neither at culmination nor at elongation

D

Either at culmination or at elongation

The sun's intense rays 'distorted' the image on the horizon .

A

reflected

B

melted

C

altered

D

disrupted

A 6 meter long ladder touches the top of a wall and makes a 45° angle with the horizon. What is the height of the wll?

A

23

B

32

C

43

D

62

A 4 meter long ladder touches the top of a wall and makes a 45° angle with the horizon. What is the height of the wall?

A

32

B

52

C

42

D

313

The tree tops on the distant horizon are all red ____ the rays of the setting sun.

A

on

B

to

C

from

D

with

2u আদিবেগ এবং অনুভূমির সাথে লম্বভাবে প্রক্ষিপ্ত বস্তুর সর্বোচ্চ উচ্চতা হবে- (An object is project with an initial velocity 2u and perpendicular to the horizon. The maximum height attained by the object is-)

A

u22g

B

2u2g

C

u22gsin a

D

u22gcos a

___appears larger on the horizon than it does overhead is merely an optical illusion. (Correctly complete the sentence)

A

The moon

B

The moon which

C

That the moon

D

Does the moon

From the principal point the horizon point lies on the principal line at a distance of

A

f tan θ

B

f sin θ

C

f cot θ

D

f cos θ

What is split horizon?

A

Information about a route should not be sent back in the direction from which the original update came.

B

It splits the traffic when you have a large bus (horizon) physical network.

C

It holds the regular updates from broadcasting to a downed link.

D

It prevents regular update messages from reinstating a route that has gone down.

The Polaris remains below horizon at

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