Paper for GUJCET Board Exam Physics and Chemistry

[Rohit Barla]

Provide me question paper for physics and chemistry subject of Gujarat Common Entrance Exam soon ?

Gujarat Common Entrance Exam is conducted recently by the Gujarat Secondary and Higher Secondary Board of Education. Here I am giving you question paper for physics and chemistry subject of Gujarat Common Entrance Exam

(1) What is the average value of the A.C. voltage over one complete cycle?
(a) max
V
2
(b) max
2V
2
(c) Vmax (d) zero
Ans. (d)

(2) A short bar magnet has a length 2l and a magnetic moment 10Am2. Find the magnetic
field at a distance of z = 0.1 m from its centre on the axial line. Here, l is negligible as
compared to z.
(a) 4 × 10–3 T (b) 1 × 10–3 T (c) 3 × 10–3 T (d) 2 × 10–3 T
Ans. (d)

(3) A short bar magnet experiences a torque of magnitude 0.64J when it is placed in a
uniform magnetic field of 0.32T, making an angle of 30º with the direction of the
field. The magnetic moment of the magnet is ……..
(a) 2Am2 (b) 6 Am2 (c) 4 Am2 (d) none of these
Ans. (c)

(5) The magnifying power of a telescope is m. If the focal length of the eye-piece is
halved, then its magnifying power is …….
(a) 4m (b)
1
2m
(c)
m
2
(d) 2m
Ans. (d)

(6) A plane mirror produces a magnification of …………
(a) infinite (b) zero (c) +1 (d) –1
Ans. (c)

(7) 100π phase difference = …….. path difference
(a) 100λ (b) 50λ (c) 25λ (d) 10λ
Ans. (b)

(8) What will be the angle of diffraction for the first order maximum due to Fraunhofer
Page No: 2 GujCET0-2010-Physics
diffraction by a single slit of width 0.50mm, using light of wavelength 500nm?
(a) 1.5 × 10–3 rad (b) 1.5 × 10–4 rad
(c) 3 × 10–3 rad (d) 1 × 10–3 rad
Ans. (d)
(9) The condition for diffraction of mth order minima is ……….
(a) m dsin (m 1) ,m 1,2,3....
2
λ θ = − = (b) m dsin (m 1) ,m 1,2,3....
2
λ θ = + =
(c) m
m
dsin ,m 1,2,3....
2
λ θ = = (d) m dsin m ,m 1,2,3.... θ = λ =
Ans. (d)
(10) If a source is transmitting electro-magnetic waves of frequency 8.196 × 106 Hz, then
the wavelength of the electro-magnetic waves transmitted from the source will be …..
(a) 3660 cm (b) 4230 mm (c) 4050 cm (d) 5090 cm