Louis de Broglie showed that the wavelength of a particle is equal to Planck’s constant divided by the mass times the velocity of the particle. The electron in Bohr’s circular orbits could thus be described as a standing wave, one that does not move through space.

λ = h/mv, where λ is wavelength, h is Planck’s constant, m is the mass of a particle, moving at a velocity v. de Broglie suggested that particles can exhibit properties of waves.

The heavier particle’s de Broglie wavelength, λ1 = h2m1K. The lighter particle’s de Broglie wavelength, λ2 = h2m2K. If m1>m2, then λ1<λ2. So, option (c) is correct.

Let m1 be the mass of the heavier particle and m2 be the mass of the lighter particle. Thus, from equations (1) and (2), we find that if the particles are moving with the same speed v, then λ λ λ 1 < λ 2 . Hence, option (a) is correct. We find that both the bodies will have the same wavelength.

The correct option is (d) β- particle.

In 1924, French scientist Louis de Broglie (1892–1987) derived an equation that described the wave nature of any particle. Particularly, the wavelength (λ) of any moving object is given by: λ=hmv. In this equation, h is Planck’s constant, m is the mass of the particle in kg, and v is the velocity of the particle in m/s …

De Broglie’s hypothesis of matter waves postulates that any particle of matter that has linear momentum is also a wave. The wavelength of a matter wave associated with a particle is inversely proportional to the magnitude of the particle’s linear momentum. The speed of the matter wave is the speed of the particle.

Wave-Particle Duality. When electrons pass through a double slit and strike a screen behind the slits, an interference pattern of bright and dark bands is formed on the screen. This proves that electrons act like waves, at least while they are propagating (traveling) through the slits and to the screen.

Along with all other quantum objects, an electron is partly a wave and partly a particle. To be more accurate, an electron is neither literally a traditional wave nor a traditional particle, but is instead a quantized fluctuating probability wavefunction.

Experiments proved atomic particles act just like waves. The energy of the electron is deposited at a point, just as if it was a particle. So while the electron propagates through space like a wave, it interacts at a point like a particle. This is known as wave-particle duality.

Wave–particle duality is the concept in quantum mechanics that every particle or quantum entity may be described as either a particle or a wave. This phenomenon has been verified not only for elementary particles, but also for compound particles like atoms and even molecules.

what happens when light enters water? It slows down. Why is light refracted when it passes from air to water? Light slows down when it enters the water.

Light is produced from light sources such as a lamp, a candle or the Sun. Light travels away from a light source until it meets an object. When something blocks light travelling from a source, a shadow is made.

5 Ideas to Teach Light

1. Go on a Light Hunt. Students look around the room to find examples of items (mediums) that transmit, reflect, refract, and absorb light.
2. Hands-On Vocabulary Lessons. I adore these 2 lessons from my Hands-On Science Vocabulary.
3. Small Group Science.
4. MUST-HAVE Observation Stations.
5. Periscope Challenge.

Light sources include light bulbs and stars like the Sun….

• 2.1 Aventurescence.
• 2.2 Bioluminescence.
• 2.3 Cathodoluminescence.
• 2.4 Chemiluminescence.
• 2.5 Cryoluminescence.
• 2.6 Crystalloluminescence.
• 2.7 Electric discharge (Electrical energy.)
• 2.8 Electrochemiluminescence.

Examples of natural sources of light

• Sun.
• Stars.
• Lightning.
• Fireflies.
• Glowworms.
• Jellyfish.
• Angler fish.
• Viperfish.

the sun