Related Questions

Decibel is a unit of ____
A light
B sound
C heat
D electricity
'Decibel' is a unit to measure __________ .
A Electricity
B Light
C Heat
D Sound
E None
Complete the following sentence by using the most "appropriate word" given below: Decibel is the ____ of measuring sound "
A unit
B scale
C balance
D way
The decibel is a measure of
A Current
B Voltage
C Power
D Power level
The weakest sound that can be heard by a person in a quiet environment is equivalent to __________ decibel.
A 1
B 5
C 10
D 20
Sound above what level (in decibel) is considered hazardous noise pollution?
A 30 dB
B 100 dB
C 80 dB
D 120 dB
The price per unit of a product increases by 25% . The actual Taka increase in the unit price is Tk.1.25. What was the unit price in Taka before the price increase?
A 5
B 7.5
C 6.25
D 8.75
The price per unit of product increased by 25% The actual taka increase in the unit price was Tk. 1.25. What was the unit price in Taka, before the price increase?
A 5.00
B 6.25
C 7.50
D 8.75
The price per unit of product increased by 25% The actual taka increase in the unit price was Tk. 1.25. What was the unit price in Taka , before the price increase?
A 5.00
B 6.25
C 7.50
D 8.75
Based on the information below, how much did a certain telephone call cost? 1. The call lasted 1 minute 27 seconds 2. The cost for the first 30 second unit is Tk. 1.80, call duration more than 30 seconds costs Tk. 0.90 per 30 second unit 3. Any call duration less than 30 seconds is rounded up to the nearest 30-second unit.
A Tk. 1.80
B Tk. 2.61
C Tk. 2.70
D Tk. 3.51

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