Related Questions

Piezoelectric quartz crystal resonators find application where
A Signal amplification is required
B Rectification of the signal is required
C Signal frequency control is required
D Modulation of signal is required
Solution X contains 40% salt and 60% water by weights, Solution Y contains 25% salt and 75% water. If a mixture of X and Y contains 30% salt. What percent of the weight of this mixture is solution X?
A 10%
B 33.3%
C 40%
D 42.5%
The materials which become polarized on the application of mechanical stress are called piezoelectric.
A True
B False
Piezoelectric materials serve as a source of ________ .
A Resonant waves
B Musical waves
C Microwaves
D Ultrasonic waves
The piezoelectric effect in a crystal is ___________
A A voltage developed because of mechanical stress
B A change in resistance because of temperature
C A change in frequency because of temperature
D None of the above
A recipe for 4 servings requires salt and pepper to be added in the ratio of 2: 3 . If the recipe is adjusted to make 8 servings, what is the ratio of the salt and pepper that must now be added?
A 4: 3
B 2 : 6
C 2 : 3
D 3 : 2
How many pounds of pure salt must be added to 30 pounds of a 2% solution of salt and water to increase it to a 10% solution?
A 23
B 83
C 63
D 75
Quartz crystal is most commonly used in crystal oscillators because ___________
A It has superior electrical properties
B It is easily available
C It is quite inexpensive
D None of the above
How much salt must we add to 10 grams of a 20% salt solution to strengthen it into a 50% solution?
A 5 gm
B 3 gm
C 6 gm
D 4 gm
Due to a 25% increase in the price of salt, a person got 10 kg less quantity for Tk. 500 than he was getting before the increase.What was the initial price per kg of salt in taka?
A 10
B 15
C 25
D 30

Next steps