The value of critical angle for glass is_______________?

Related Mcqs:

1. The critical speed of an artificial satellite is_______________?

   A. 8 Kms-1
   B. 8.1 Kms-1
   C. 7.9 Kms-1
   D. 8 ms-1

2. What is the value of the current in a wire of 10cm long at the right angle to a uniform magnetic field of 0.5 Weber/m2 when the force acting on the wire is 5N ?

   A. 1A
   B. 10A
   C. 100A
   D. 1000A

3. If a glass plate is inserted in between the plate of a capacitor in series with a lighted bulb the brightness of the bulb________________?

   A. Remains same
   B. Brightness increases
   C. Brightness decreases
   D. No light

4. Which one of the following of glass can cut ultraviolet rays?

   A. Jena Glass
   B. Soda Glass
   C. Pyrex Glass
   D. Crookes Glass

   Submitted by: Parvez Malik

5. At resonance the value of the power factor in an L-C-R series circuit is_______________?

   A. Zero
   B. 2
   C. 1
   D. Not definite

6. The value of γ for diatomic gas is_______________?

   A. 1.67
   B. 1.4
   C. γ = 1.3
   D. None

7. The phase angle between the voltage and the current in an AC circuit consisting of a resistance is______________?

   A. Zero
   B. 45°
   C. 90°
   D. 180°

8. What is the angle that the given vector makes with y-axis and A=2i+3j ?

   A. 30°
   B. 60°
   C. 90°
   D. 120°

9. If a wheel of radius r turns through an angle of 30° then the distance through which any point on its rim moves is______________?

   A. π /3 x r
   B. π/6 x r
   C. V/30 x r
   D. π / 180 x r

10. Angle between the rectangular components of a vector is________?

    A. Zero
    B. 30°
    C. 45°
    D. 90°

    Submitted by: Zahid Jagirani