Question: Confirmation of the presence of Higgs boson will justify –
1. Both the standard model and superstring theory
2. The unification of all the four fundamental forces
3. The steady-states model of the universe
4. The mass of the fundamental particles
Answer: 4
Question: In terms magnetic properties oxygen belong to –
1. Magnetic materials
2. Ferromagnetic materials
3. Paramagnetic materials
4. Diamagnetic materials
Answer: 3
Question: Light-eliminating diode (LED) converts –
1. Light energy into electrical energy
2. Electrical energy into light energy
3. Thermal energy into light energy
4. Mechanical energy into electrical energy
Answer: 2
Question: The Celsius temperature is a/an-
1. Relative temperature
2. absolute temperature
3. Specific temperature
4. Approximate temperature
Answer: 2
Question: Which type/types of pen uses/use capillary action in addition to gravity for flow of ink?
1. Fountain pen
2. Ballpoint pen
3. Gel pen only
4. Both ballpoint pen and gel pen
Answer: 3
Question: A light year is a unit of
1. Velocity
2. Distance
3. Time
4. Energy
Answer: 2
Question: Which one among the following is not a mixture?
1. Graphite
2. Steel
3. Glass
4. Brass
Answer: 1
Question: Which one among the following most correctly determines the atomic number of an element?
1. Number of protons and electrons
2. Number of nucleons
3. Number of ions
4. Number of protons
Answer: 4
Question: Which one among the following is used to make periscope?
1. Concave lens
2. Concave mirror
3. Plane mirror
4. None of these
Answer: 3
Question: Kilowatt-hour is the unit of
1. electric energy
2. electric power
3. electric potential
4. potential difference
Answer: 1
Question: A stable nucleus (light with A < 10) has 1. no protons 2. no neutrons 3. exactly the same number of neutrons and protons 4. more neutrons than protons Answer: 3 Question: Which one among the following waves are called waves of heat energy? 1. Radio waves 2. Microwaves 3. Ultraviolet waves 4. Infrared waves Answer: 4