Question

Constant error can be caused due to ______.

Options

• faulty construction of instrument.

• wrong setting of instrument.

• lack of concentration of observer.

• wrong procedure of handling the instrument.

Answer 1

Constant error can be caused due to faulty construction of instrument, wrong setting of instrument, wrong procedure of handling the instrument.

Explanation:
Constant (systematic) errors arise from consistent issues like faulty instruments, incorrect settings, or wrong procedures. Lack of concentration causes random error, not constant error.