NIELIT 2018-60

Question

If the period of a signal is $100$ ms. Then its frequency in Hertz is ______

• A. $10$
• B. $100$
• C. $1000$
• D. $10000$

Comments

signal is 100ms

---

Frequency = 1/Period.
Frequency = 1/100 x 10-3 Hz
= 10 Hz

Answer 1

Frequency is inverse of time period.

Time period given = 100ms

$F= 1/T$

$\Rightarrow 1/100ms$ $ = 10^3/100$

$\Rightarrow 10$

so option A.