MEDIUM #1380

Sound travels fastest in which medium?

A Vacuum

B Air

C Water

D Steel ✓

PhysicsSciences FederalNTS

EASY #1304

Newton's First Law of Motion is also called?

A Law of Acceleration

B Law of Inertia ✓

C Law of Action-Reaction

D Law of Gravitation

PhysicsSciences MDCATMedical

EASY #1305

The SI unit of force is?

A Joule

B Watt

C Newton ✓

D Pascal

PhysicsSciences ECATEngineering

EASY #1306

Which type of wave requires a medium to travel?

A Radio waves

B Light waves

C Sound waves ✓

D X-rays

PhysicsSciences MDCATMedical

MEDIUM #1307

The phenomenon of total internal reflection is used in?

A Mirrors

B Optical fibres ✓

C Lenses

D Prisms

PhysicsSciences ECATEngineering

EASY #1308

What is the unit of frequency?

A Metre

B Second

C Hertz ✓

D Watt

PhysicsSciences FederalNTS

EASY #1268

The speed of light in vacuum is approximately?

A 3 × 10⁶ m/s

B 3 × 10⁸ m/s ✓

C 3 × 10¹⁰ m/s

D 3 × 10⁴ m/s

PhysicsSciences FederalNTS

EASY #1271

The unit of electric current is?

A Volt

B Watt

C Ampere ✓

D Ohm

PhysicsSciences FederalFPSC