1) In curved space one of these is wrong n a. Parallel lines may meet in curved

ID: 2110046 • Letter: 1

Question

1)In curved space one of these is wrong

na. Parallel lines may meet in curved space

nb. The angles of a triangle do not add up to 180 degrees

nc. The ratio of the circumference of a circle to its diameter is not Pi.

nd. Laws of physics differ from the case of flat space

2)Event horizon:

na. is the outer boundary of a black hole

nb. is the inner boundary of a black hole

nc. is the Core of a black hole

nd. is the reason for existing of a black hole

3)Gravitational waves are generated by:

na. Supermassive stars

nb. Supermassive black holes

nc. Supermassive galaxies

nd. Acceleration of any supermassive object

1.) nb is wrong.

2.)nd

3.)na

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