Question
Why do pulsars appear to flicker when observed from
Earth?Solution
Pulsars are neutron stars that emit beams of radiation along their magnetic poles. These stars appear to flicker due to their rapid rotation, which periodically aligns their radiation beams with the Earth.
1Â Â Â Â 1Â Â Â Â 8Â Â Â Â 4Â Â Â Â 27Â Â Â Â 9Â Â Â Â ?
...1,2, 5, ‘?’, 41, 122, 365
22Â Â Â 66Â Â Â Â 165Â Â Â Â 330Â Â Â Â Â 495Â Â Â ?
35Â Â Â Â Â Â Â Â Â Â 36Â Â Â Â Â Â Â Â Â Â 40Â Â Â Â Â Â Â Â Â Â 49Â Â Â Â Â Â Â Â Â Â 65Â Â Â Â Â Â Â Â Â Â ?
...3601 3602 1803 604 154 36
...D irection: Which of the following will replace ‘?’ in the following series.
543,’?’, 564 ,588, 660
...If 152,   242,    x ,  332,   404,    314,
then find the value of (2x – 1)?
...If 7             16      x    90       171          292
Then, 2x 2 +  1 + x ...
6 6 3 6.5 12 33
...130 114 106 102 100 ?
Relevant for Exams:
