Step 1: Analyzing the structure of a bathing mug.
- The mug generally has a cylindrical or slightly tapered body.
- A curved handle is attached to one side to facilitate grip.
Step 2: Sketching the hand holding the mug.
- The fingers and thumb should naturally wrap around the handle.
- The grip must be proportionate to the size and shape of the mug.
Step 3: Depicting material characteristics.
- The mug can be made of plastic, metal, or stainless steel.
- Apply texture details and reflective highlights based on the material properties.
Step 4: Enhancing realism.
- Utilize shading techniques to create depth and form.
- Include cast shadows of the mug and hand to indicate light direction.
Figure 1 shows the configuration of main scale and Vernier scale before measurement. Fig. 2 shows the configuration corresponding to the measurement of diameter $ D $ of a tube. The measured value of $ D $ is:
The center of a disk of radius $ r $ and mass $ m $ is attached to a spring of spring constant $ k $, inside a ring of radius $ R>r $ as shown in the figure. The other end of the spring is attached on the periphery of the ring. Both the ring and the disk are in the same vertical plane. The disk can only roll along the inside periphery of the ring, without slipping. The spring can only be stretched or compressed along the periphery of the ring, following Hooke’s law. In equilibrium, the disk is at the bottom of the ring. Assuming small displacement of the disc, the time period of oscillation of center of mass of the disk is written as $ T = \frac{2\pi}{\omega} $. The correct expression for $ \omega $ is ( $ g $ is the acceleration due to gravity):