ISAT Previous Question Papers PDFS

Hello sir my name is Shubham and looking for the ISAT exam papers for that will you please help me here to get the papers?

[Pathak]

On your concern Shubham I will get the ISAT exam papers so that you can prepare and get idea about the exam.

Here is the ISAT exam paper
A polarizer is introduced in the path of a beam of unpolarized light incident on a block of transparent material (refractive index = p3). The polarizer can be placed such that its axis is parallel (P) or normal (N) to the plane of incidence. The incident beam makes an angle θ with the surface of the block. The light will be completely transmitted if
(A) θ = 30◦ and the polarizer is placed in P
(B) θ = 30◦ and the polarizer is placed in N
(C) θ = 60◦ and the polarizer is placed in P
(D) θ = 60◦ and the polarizer is placed in N

A submarine traveling at 10 ms−1 is chasing another one in front of it. It locates its position and speed by sending Sonar (ultrasonic sound) towards it and recording the time of its travel and return frequency. The frequency of the Sonar is 25000 Hz and the frequency of the reflected signal is 24900 Hz. If the speed of sound in water is 1500 ms−1, the speed of the submarine being chased is
(A) 16 ms−1
(B) 14 ms−1
(C) 13 ms−1
(D) 11 ms−1

The central fringe in a Young’s double slit experiment with the He-Ne laser (λ = 632.8 nm) has intensity I0. If one of the slits is covered by a 5µm thick film of plastic (refractive index = 1.4), the intensity becomes I1. The ratio I1/I0 is close to
(A) 3/16
(B) 1/4
(C) 1/2
(D) 3/4

A light sensor is fixed at one corner of the bottom of a rectangular tank of depth 10 m full of a liquid of refractive index 2/p3. The illuminated area through which the light can exit at the top of the tank is
(A) a quarter of a circle of radius > 10 m
(B) a quarter of a circle of radius < 10 m
(C) a quarter of a circle of radius = 10p3 m
(D) a quarter of a circle of radius > 10p3 m

Laplace correction to the speed of sound is made only for gases and not for solids and liquids. This is because, in comparison to gases, liquids and solids have
(A) larger thermal conductivity
(B) much smaller compressibility
(C) much smaller coefficient of thermal expansion
(D) much smaller relative pressure change when the wave is passing through them.

Which of the following quantities has the least number of significant digits?
(A) 0.80760
(B) 0.08765
(C) 5.7423 × 102
(D) 80.760

In an experiment designed to determine the universal gravitational constant, G, the percentage errors in measuring the appropriate mass, length and time variables are given by a, b, c respectively. The total error in determining G is then
(A) (a + 3b + 2c)
(B) (−a + 3b − 2c)
(C) (2a + 3b + 2c)
(D) (a + 9b + 4c)

ISAT exam paper 1



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