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Questions and Answers
What is the time taken by an object to reach the ground if it is thrown vertically upwards with an initial velocity of 32.4 m/s?
What is the time taken by an object to reach the ground if it is thrown vertically upwards with an initial velocity of 32.4 m/s?
6.6 seconds
What is the acceleration of the combination of two objects of masses 2 kg and 1 kg connected by a massless string on a rough surface?
What is the acceleration of the combination of two objects of masses 2 kg and 1 kg connected by a massless string on a rough surface?
1.96 m/s²
Calculate the capacitance of a parallel plate capacitor with plates of area 0.01 m², separation 0.001 m, and charged with 3μC.
Calculate the capacitance of a parallel plate capacitor with plates of area 0.01 m², separation 0.001 m, and charged with 3μC.
30 μF
Find the magnetic flux through a coil with 50 turns, radius 0.15 m, cross-sectional area 1.5 x 10^-4 m², in a uniform magnetic field of 0.8 T.
Find the magnetic flux through a coil with 50 turns, radius 0.15 m, cross-sectional area 1.5 x 10^-4 m², in a uniform magnetic field of 0.8 T.
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What is the amplitude of the wave described by the equation $y(x,t)=0.2 ext{sin}(0.8x-6t+1)$?
What is the amplitude of the wave described by the equation $y(x,t)=0.2 ext{sin}(0.8x-6t+1)$?
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What is the wavelength of the wave described by the equation $y(x,t)=0.2 ext{sin}(0.8x-6t+1)$?
What is the wavelength of the wave described by the equation $y(x,t)=0.2 ext{sin}(0.8x-6t+1)$?
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What is the period of the wave described by the equation $y(x,t)=0.2 ext{sin}(0.8x-6t+1)$?
What is the period of the wave described by the equation $y(x,t)=0.2 ext{sin}(0.8x-6t+1)$?
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What is the frequency of the resulting wave when two point sources emit sound waves with frequencies $f_1=285$ Hz and $f_2=355$ Hz, and the phase difference between the waves is $ ext{pi}/4$?
What is the frequency of the resulting wave when two point sources emit sound waves with frequencies $f_1=285$ Hz and $f_2=355$ Hz, and the phase difference between the waves is $ ext{pi}/4$?
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What is the refractive index of the glass with respect to air if a glass prism has an angle of incidence of $42^ ext{o}$ and an angle of refraction of $54^ ext{o}$?
What is the refractive index of the glass with respect to air if a glass prism has an angle of incidence of $42^ ext{o}$ and an angle of refraction of $54^ ext{o}$?
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What is the thickness of a convex lens at its center if it has a focal length of 2 cm, a radius of curvature of 10 cm, and a refractive index of 3?
What is the thickness of a convex lens at its center if it has a focal length of 2 cm, a radius of curvature of 10 cm, and a refractive index of 3?
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Study Notes
2nd PUC Science Exam Questions: Physics
The Secondary Professional Education (2nd PUC) board exam in Karnataka, India, includes a rigorous and comprehensive assessment of the Physics syllabus. The questions are designed to test a student's understanding, application, and problem-solving skills in various Physics domains. Here, we'll delve into some topics and questions that may appear in the 2nd PUC Physics exam.
Mechanics
- The acceleration due to gravity on Earth is approximately (g=9.81) m/s². Determine the time taken by an object to reach the ground if it is thrown vertically upwards with an initial velocity of (32.4) m/s.
- Two objects of masses (m_1=2) kg and (m_2=1) kg are connected by a massless string and are placed on a rough horizontal surface. The coefficient of static friction between the objects and the surface is (0.25). If the system is released, find the acceleration of the combination.
Electromagnetism
- A parallel plate capacitor has plates of area (A=0.01) m² and separation (d=0.001) m. When charged with a charge of (Q=3\mu)C, the electric field between the plates is (E=3.6\times 10^5) N/C. Calculate the capacitance of the capacitor.
- A coil with (N=50) turns, radius (R=0.15) m, and cross-sectional area (A=1.5\times 10^{-4}) m² is placed in a uniform magnetic field (B=0.8) T. Determine the magnetic flux through the coil.
Waves
- A wave is described by the equation (y(x,t)=0.2\sin(0.8x-6t+1)), where (x) and (y) are in meters and (t) is in seconds. Determine the amplitude, wavelength, and period of the wave.
- Two point sources emit sound waves with frequencies (f_1=285) Hz and (f_2=355) Hz. Find the frequency of the resulting wave at a point between the sources if the phase difference between the waves is (\pi/4).
Optics
- A glass prism has an angle of incidence of (42^\circ). It refracts light with an angle of refraction of (54^\circ). Find the refractive index of the glass with respect to air.
- A convex lens has a focal length of (f=2) cm and a radius of curvature (R=10) cm. Find the thickness of the lens at its center if its refractive index is 3.
Modern Physics
- Describe the basic principles of the photoelectric effect and explain how it led to the development of quantum mechanics.
- Briefly explain the nuclear model of the atom and its significance in understanding atomic structure.
At the 2nd PUC level, students are expected to have a strong foundation in basic and advanced concepts in Physics. The questions above are designed to assess a student's understanding of the subject and their ability to apply theoretical knowledge to solve real-world problems. Keep in mind that this is not an exhaustive list of questions and that the exact exam questions may vary each year.
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Description
Prepare for the 2nd PUC Physics exam with questions covering topics like Mechanics, Electromagnetism, Waves, Optics, and Modern Physics. Test your knowledge and problem-solving skills with questions on gravity, capacitors, wave equations, prism refraction, photoelectric effect, and nuclear atom model.
