Q1. When blue light of wavelength 450 nm falls on a single slit, the first dark bands on either side of center are separated by 58.0 degrees. Determine the width of the slit.

Q2. A farsighted man uses eyeglasses with a refractive power of 2.05 diopters. Wearing the glasses 0.03 m from his eyes, he is able to read books held no closer than 0.26 m from his eyes. He would like a prescription for contact lenses to serve the similar purpose. What is the correct contact lens prescription, in diopters?

What are the speeds of each after the collision : What is the direction of proton after the collision? What is the direction of carbon atom after the collision. |

How fast is the bag moving when the bullet exits : A 120 granite cube slides down a 45 frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 210 steel cube at rest. |

The energy acquire by consuming a 190-calorie doughnut : Suppose a constant ratio of 13.60 counts per minute per gram of living matter. A sample of a petrified tree was found to give 1.8 counts per minute per gram. How old is the tree. |

Normal distribution : Mean threshold values and standard deviations for the three groups are given below. Normal probability plots showed the three populations were well approximated by the Normal distribution. |

Determine the width of the slit : He would like a prescription for contact lenses to serve the similar purpose. What is the correct contact lens prescription, in diopters. |

What is the tension of string : A 73 trampoline artist jumps vertically upward from the top of a platform with a speed of 4.0. If the trampoline behaves like a spring of spring constant 6.2×104, how far does he depress it. |

What is the strength of the electric field : The electric field points radially outward at all points within the sphere (and outside too, for that matter). What is the strength of the electric field at a distance r from the center, inside sphere. |

What is the highest order of diffraction : A 6.4kg ball, hanging from the ceiling by a light wire 135cm long, is struck in an elastic collision by a 1.80 ball moving horizontally at 4.20 m/s just before the collision. Find the tension in the wire just after the collision. |

How far is it from your eyes to the image : The cord between the pouch and the person's hand has negligible mass and will break when the tension in the cord is 33.0 N or more. Assume the sling thrower could gradually increase the speed of the stone. |

## Determine magnitude of acceleration of pilot at lowest pointA plate carries a charge of -3.9 µC, while a rod carries a charge of +2.2 µC. How many electrons should be transferred from the plate to the rod, so that both objects have the same charge. |

## What kinetic energy of the electrons removed from cathodeWhat are the velocities of the two people after the snowball is exchanged. What is the greatest kinetic energy of the electrons removed from the cathode by this light. |

## What is magnitude of the linear acceleration of hoopThe longest "string" (a thick metal wire) on a particular piano is 3.0 m long and has a tension of 300.0 N. It vibrates with a fundamental frequency of 27.5 Hz. What is the total mass of the wire. |

## How long will it take the wheel to make one revolutionA 66 N m torque acts on a wheel with a moment of inertia 175 kg m2. If the wheel starts from rest, how long will it take the wheel to make one revolution? The system is released from rest and accelerates under the weight of m2. |

## What is the speed of the electronAt what angle of incidence will green light (g = 560 nm) be most strongly reflected? Imagine the film has the minimum thickness that can produce these reflections. |

## What will be its radius of curvatureA doubly charged helium atom whose mass is 6.6 10 to 27 kg is accelerated by a voltage of 2200 V. What will be its radius of curvature if it moves in the plane perpendicular to a uniform 0.308 T field? |

## Find the speed of the golf ball just after impactF ind the speed of the golf ball just after impact |

## What is phase change as the light is reflected from the topWhat is phase change as the light is reflected from the top |

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