type: fill_blank | topic: all-experiments

1. The LC of a Vernier caliper with 10 VSD = 9 MSD (1 MSD = 1 mm) is ______. (0.1 mm)

2. A screw gauge has pitch 1 mm and 100 circular divisions. Its LC is ______. (0.01 mm)

3. If the Vernier zero is 2 divisions to the LEFT of the main scale zero (LC = 0.02 mm), the zero error is ______ mm and the correction is to ______ this value. (−0.04 mm; add)

4. In the resonance tube, the end correction e = ____. *(e = (l{2}−3l{1})/2)*

5. The slope of the $T^{2}$ vs l graph for a simple pendulum is ______. (4π^{2}/g)

6. At minimum deviation in a prism, the angle of incidence equals ______. (angle of emergence, i = e)

7. The Wheatstone bridge principle gives the metre bridge balance condition: R/S = ______. (l/(100−l))

8. If R and S are interchanged in a metre bridge, and original balance was at 40 cm, the new balance is at ______ cm. (60 cm)

9. Young's modulus dimensional formula is ______. ([ML^{-1}$$T^{-2}])

10. Surface tension formula by capillary rise: S = ______. (hrρg/(2cosθ))

11. Stokes' drag force: F = ______. (6πηrv)

12. The threshold voltage for a germanium diode is approximately ______ V. (0.3 V)

13. A Zener diode provides voltage regulation in ______ bias. (reverse)

14. The figure of merit k of a galvanometer = ______ (SI unit: ______). (I/θ; A/div)

15. The refractive index of a prism: μ = sin(______)/sin(A/2). (sin((A+δ_min)/2))

16. Real depth = 12 cm, μ = 1.5. Apparent depth = ______ cm. (8 cm)

17. For a convex lens, the focal length f is ______ (positive/negative). (positive)

18. Resistivity ρ = ______. (RA/L)

19. The color code for a resistor with value 4700 $\Omega$ is Yellow-Violet-______-Gold. (Red)

20. Viscosity η dimensional formula: ______. ([ML^{-1}$$T^{-1}])