Question
What are the rules for finding the significant figures? Explain each rule with an example.
✓
Answer
self
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
What is change of state? What are the two special things for this and what are the main activities of change of state?
The edge of an aluminium cube is 10 cm long. One face of the cube is firmly fixed to a vertical wall. A mass of 100 kg is then attached to the opposite face of the cube. The shear modulus of aluminium is 25 GPa. What is the vertical deflection of this face?
A nucleus is at rest in the laboratory frame of reference. Show that if it disintegrates into two smaller nuclei the products must move in opposite directions.
Use the formula $\text{v}=\sqrt{\frac{\gamma\text{P}}{\rho}}$ to explain why the speed of sound in air:
Increases with humidity.
→Increases with humidity.
A particle executes S.H.M of time period 10s. The displacement at any instant is given by the relation $\text{x}=10\sin\omega\text{t}$ Find
→- Velocity of the body 2s after it passes through the mean position and
- The acceleration 2s after it passes the mean position (Amplitude is given in cm).
Both the capacitors shown in figure are made of square plates of edge a. The separations between the plates of the capacitors are d1 and d2 as shown in the figure. A potential difference V is applied between the points a and b, An electron is projected between the plates of the upper capacitor along the central line. With what minimum speed should the electron be projected so that it does not collide with any plate? Consider only the electric forces.
Draw a graph to show the variation of P.E., K.E. and total energy of a simple harmonic oscillator with displacement.
Two equal charges, 2.0 × 10-7C each, are held fixed at a separation of 20cm. A third charge of equal magmtude is placed midway between the two charges. It is now moved to a point 20cm from both the charges. How much work is done by the electric field durmg the process?
What is Simple pendulum? Find an expression for the time period and frequency of a simple pendulum?
A hydrogen atom moving at speed υ collides with another hydrogen atom kept at rest. Find the minimum value of υ for which one of the atoms may get ionized. The mass of a hydrogen atom = 1.67 × 10-27kg.