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Peter Lal Padmanabhan

Asked: 3 years agoIn: Physics

The quantisation of charge was first suggested by ________________
1. Michael Faraday
2. Sir Issac Newton
3. Rutherford
4. Max Planck

Parvez Bhai Pall

Asked: 3 years agoIn: Physics

A train moves towards a stationary observer with speed 34 m/s. The train sounds a whistle and its frequency registered by the observer is f₁. If the speed of the train is reduced to 17 m/s, the frequency registered is f₂. If speed of sound is 340 m/s, then the ratio \(\frac{{{f_1}}}{{{f_2}}}\) is
1. \(\frac{{19}}{{18}}\)
2. \(\frac{{21}}{{20}}\)
3. \(\frac{{20}}{{19}}\)
4. \(\frac{{18}}{{17}}\)

Hira Khatri

Asked: 3 years agoIn: Physics

A Ruby is a crystal of ____.
1. CuSO₄
2. AIO₂
3. AI₂O₃
4. FeO

Amrita Usman Agate

Asked: 3 years agoIn: Physics

During the phenomenon of aphelion, the approximate distance between the earth and the sun is:
1. 137 million km
2. 147 million km
3. 142 million km
4. 152 million km

Tushar Javed Kurian

Asked: 3 years agoIn: Physics

(A) प्रकाश वर्ष
(B) अधि वर्ष
(C) चन्द्र माह
(D) इनमें से कोई नहीं

Baldev Singhal

Asked: 3 years agoIn: Physics

A parallel-plate capacitor has plates of area 10 cm² separated by a distance of 1 mm. It is filled with the dielectric mica and connected to a battery of emf 6 volts. Find the leakage current through the capacitor. Resistivity of mica = 1 × 10¹³ Ω-m
1. 10 × 10^-13 A
2. 1 × 10^-13 A
3. 6 × 10^-13 A
4. 3 × 10^-13 A

Habib Prasad Mahadeo

Asked: 3 years agoIn: Physics

An ideal gas occupies a volume of 2 m³ at a pressure of 3 × 10⁶ Pa. The energy of the gas is
1. 6 × 10⁴ J
2. 10⁸ J
3. 9 × 10⁶ J
4. 3 × 10² J

Usman Lal Nazareth

Asked: 3 years agoIn: Physics

A laser produces intense, monochromatic, coherent light by which of the following process?
1. stimulated absorption
2. stimulated emission
3. bremsstrahlung
4. spontaneous emission

Habib Iqbal Wason

Asked: 3 years agoIn: Physics

Which of the following was the first working laser?
1. Disk laser
2. Ruby laser
3. Carbon dioxide laser
4. Argon – ion laser

Jack Nayar

Asked: 3 years agoIn: Physics

A satellite of mass M is in a circular orbit of radius “R” about the centre of the earth. A meteorite of the same mass falling towards the earth collides with the satellite completely in-elastically. The speeds of the satellite and the meteorite are the same just before the collision. The subsequent motion of the combined body will be
1. In the same circular orbit of radius R
2. In an elliptical orbit
3. Such that it escapes to infinity
4. In a circular orbit of a different radius

Load More Questions

The quantisation of charge was first suggested by ________________
1. Michael Faraday
2. Sir Issac Newton
3. Rutherford
4. Max Planck

A Ruby is a crystal of ____.
1. CuSO₄
2. AIO₂
3. AI₂O₃
4. FeO

During the phenomenon of aphelion, the approximate distance between the earth and the sun is:
1. 137 million km
2. 147 million km
3. 142 million km
4. 152 million km

(A) प्रकाश वर्ष
(B) अधि वर्ष
(C) चन्द्र माह
(D) इनमें से कोई नहीं

(A) प्रकाश वर्ष

(B) अधि वर्ष

(C) चन्द्र माह

(D) इनमें से कोई नहीं

An ideal gas occupies a volume of 2 m³ at a pressure of 3 × 10⁶ Pa. The energy of the gas is
1. 6 × 10⁴ J
2. 10⁸ J
3. 9 × 10⁶ J
4. 3 × 10² J

A laser produces intense, monochromatic, coherent light by which of the following process?
1. stimulated absorption
2. stimulated emission
3. bremsstrahlung
4. spontaneous emission

Which of the following was the first working laser?
1. Disk laser
2. Ruby laser
3. Carbon dioxide laser
4. Argon – ion laser

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