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#1
August 14th, 2012, 10:57 AM
 chitra bhardwaj Guest Posts: n/a
ISAT Sample Questions

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#2
August 14th, 2012, 03:15 PM
 Kesari Super Moderator Join Date: Dec 2011 Posts: 21,891
Re: ISAT Sample Questions

The Indian Institute of Space Science and Technology conducts ISAT exam. Here I am providing you the ISAT exam questions:

1. A projectile is fired at an angle 60◦ with some velocity u. If the angle is changed infinitesimally, let the
corresponding fractional changes in the range and the time of flight be x and y, respectively, Then y is
(A) 2
3x
(B) −2
3x
(C) 2x
(D) −2x

2. A photon with an initial frequency 1011Hz scatters off an electron at rest. Its final frequency is
0.9×1011 Hz. The speed of the scattered electron is close to (h = 6.63×10−34 Js, me = 9.1×10−31 kg)
(A) 4 × 103 ms−1
(B) 3 × 102 ms−1
(C) 2 × 106 ms−1
(D) 30ms−1
Space for rough work
ET-21 3/32 SET-A

Attached Files
 ISAT paper.pdf (151.8 KB, 70 views)
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