C\u00e2u 1:<\/b>\u00a0Ph\u00f3ng x\u1ea1 l\u00e0<\/p>\n

A. qu\u00e1 tr\u00ecnh h\u1ea1t nh\u00e2n nguy\u00ean t\u1eed ph\u00e1t c\u00e1c tia kh\u00f4ng nhign th\u1ea5y<\/p>\n

B. qu\u00e1 tr\u00ecnh ph\u00e2n r\u00e3 t\u1ef1 ph\u00e1t c\u1ee7a m\u1ed9t h\u1ea1t nh\u00e2n kh\u00f4ng b\u1ec1n v\u1eefng<\/p>\n

C. qu\u00e1 tr\u00ecnh h\u1ea1t nh\u00e2n nguy\u00ean t\u1eed h\u1ea5p th\u1ee5 n\u0103ng l\u01b0\u1ee3ng \u0111\u1ec3 ph\u00e1t ra c\u00e1c tia \u03b1, \u03b2.<\/p>\n

D. qu\u00e1 tr\u00ecnh h\u1ea1t nh\u00e2n nguy\u00ean t\u1eed n\u1eb7ng b\u1ecb ph\u00e1 v\u1ee1 th\u00e0nh c\u00e1c h\u1ea1t nh\u00e2n nh\u1ecf h\u01a1n.<\/p>\n

C\u00e2u 2:<\/b>\u00a0H\u1eb1ng s\u1ed1 ph\u00f3ng x\u1ea1 c\u1ee7a m\u1ed9t ch\u1ea5t<\/p>\n

A. t\u1ec9 l\u1ec7 thu\u1eadn kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a ch\u1ea5t ph\u00f3ng x\u1ea1<\/p>\n

B. t\u1ec9 l\u1ec7 ngh\u1ecbch v\u1edbi chu k\u00ec b\u00e1n r\u00e3 c\u1ee7a ch\u1ea5t ph\u00f3ng x\u1ea1<\/p>\n

C. t\u1ec9 l\u1ec7 ngh\u1ecbch v\u1edbi \u0111\u1ed9 ph\u00f3ng x\u1ea1 c\u1ee7a ch\u1ea5t ph\u00f3ng x\u1ea1<\/p>\n

D. t\u1ec9 l\u1ec7 ngh\u1ecbch v\u1edbi th\u1ec3 t\u00edch ch\u1ea5t ph\u00f3ng x\u1ea1<\/p>\n

C\u00e2u 3:<\/b>\u00a0T\u00ecm ph\u00e1t bi\u1ec3u sai khi n\u00f3i v\u1ec1 \u0111\u1ecbnh lu\u1eadt ph\u00f3ng x\u1ea1<\/p>\n

A. Sau m\u1ed9t chu k\u00ec b\u00e1n r\u00e3, kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a ch\u1ea5t ph\u00f3ng x\u1ea1 gi\u1ea3m \u0111i 50%<\/p>\n

B. Sau hai chu k\u00ec b\u00e1n r\u00e3, kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a ch\u1ea5t ph\u00f3ng x\u1ea1 gi\u1ea3m \u0111i 75%<\/p>\n

C. Sau m\u1ed9t n\u1eeda chu k\u00ec b\u00e1n r\u00e3, kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a ch\u1ea5t ph\u00f3ng x\u1ea1 gi\u1ea3m \u0111i 25%<\/p>\n

D. Sau ba chu k\u00ec b\u00e1n r\u00e3, kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a ch\u1ea5t ph\u00f3ng x\u1ea1 c\u00f2n l\u1ea1i b\u1eb1ng 12,5% kh\u1ed1i l\u01b0\u1ee3ng ban \u0111\u1ea7u.<\/p>\n

C\u00e2u 4:<\/b>\u00a0K\u1ebft lu\u1eadn n\u00e0o sau \u0111\u00e2y l\u00e0 kh\u00f4ng \u0111\u00fang khi n\u00f3i v\u1ec1 c\u00e1c tia ph\u00f3ng x\u1ea1 bay v\u00e0o m\u1ed9t \u0111i\u1ec7n tr\u01b0\u1eddng \u0111\u1ec1u?<\/p>\n

A. tia \u03b3 kh\u00f4ng b\u1ecb l\u1ec7ch<\/p>\n

B. \u0111\u1ed9 l\u1ec7ch c\u1ee7a tia \u03b2^{+<\/sup>\u00a0v\u00e0 \u03b2–<\/sup>\u00a0l\u00e0 nh\u01b0 nhau<\/p>\n}

C. tia \u03b2^{+<\/sup>\u00a0b\u1ecb l\u1ec7ch v\u1ec1 ph\u00eda b\u1ea3n \u00e2m c\u1ee7a t\u1ee5 \u0111i\u1ec7n<\/p>\n}

D. tia \u03b1^{+<\/sup>\u00a0b\u1ecb l\u1ec7ch v\u1ec1 ph\u00eda b\u1ea3n \u00e2m c\u1ee7a t\u1ee5 \u0111i\u1ec7n nhi\u1ec1u h\u01a1n tia \u03b2+<\/sup><\/p>\n}

C\u00e2u 5:<\/b>\u00a0Ph\u00f3ng x\u1ea1 \u03b2^{–<\/sup>\u00a0x\u1ea3y ra khi<\/p>\n}

A. trong h\u1ea1t nh\u00e2n c\u00f3 s\u1ef1 bi\u1ebfn \u0111\u1ed5i nucl\u00f4n th\u00e0nh \u00ealectron<\/p>\n

B. trong h\u1ea1t nh\u00e2n c\u00f3 s\u1ef1 bi\u1ebfn \u0111\u1ed5i proton th\u00e0nh n\u01a1tron<\/p>\n

C. trong h\u1ea1t nh\u00e2n c\u00f3 s\u1ef1 bi\u1ebfn \u0111\u1ed5i n\u01a1tron th\u00e0nh proton<\/p>\n

D. xu\u1ea5t hi\u1ec7n h\u1ea1t n\u01a1trin\u00f4 trong bi\u1ebfn \u0111\u1ed5i h\u1ea1t nh\u00e2n<\/p>\n

C\u00e2u 6:<\/b>\u00a0^{226<\/sup>Ra ph\u00e2n r\u00e3 th\u00e0nh\u00a0222<\/sup>Rn b\u1eb1ng c\u00e1ch ph\u00e1t ra<\/p>\n}

A. \u00ealectron \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B. anpha<\/p>\n

C. p\u00f4zitron \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D. gamma<\/p>\n

C\u00e2u 7:<\/b>\u00a0Sau ba ph\u00e2n r\u00e3 \u03b1 th\u00e0nh hai ph\u00e2n r\u00e3 \u03b2^{–<\/sup>\u00a0th\u00ec h\u1ea1t nh\u00e2n nguy\u00ean t\u1ed1 X bi\u1ebfn th\u00e0nh h\u1ea1t nh\u00e2n ra\u0111\u00f4n\u00a0_{88<\/sub>226<\/sup>Ra. Nguy\u00ean t\u1ed1 X l\u00e0<\/p>\n}}

A. th\u00f4ri \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B. urani<\/p>\n

C. p\u00f4l\u00f4ni \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D. ra\u0111i<\/p>\n

C\u00e2u 8:<\/b>\u00a0Trong t\u1eeb tr\u01b0\u1eddng, tia ph\u00f3ng x\u1ea1 \u0111i qua m\u1ed9t t\u1ea5n th\u1ee7y tinh m\u1ecfng N th\u00ec v\u1ebft c\u1ee7a h\u1ea1t c\u00f3 d\u1ea1ng nh\u01b0 h\u00ecnh v\u1ebd. H\u1ea1t \u0111\u00f3 l\u00e0 h\u1ea1t p<\/p>\n

<\/p>\n

A. \u03b3 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B. \u03b2^{+<\/sup><\/p>\n}

C. \u03b2^{–<\/sup>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D. \u03b1<\/p>\n}

H\u01b0\u1edbng d\u1eabn gi\u1ea3i v\u00e0 \u0111\u00e1p \u00e1n<\/b><\/p>\n\n\n\n\n

C\u00e2u<\/td>\n	1<\/td>\n	2<\/td>\n	3<\/td>\n	4<\/td>\n	5<\/td>\n	6<\/td>\n	7<\/td>\n	8<\/td>\n<\/tr>\n
\u0110\u00e1p \u00e1n<\/td>\n	B<\/td>\n	B<\/td>\n	C<\/td>\n	D<\/td>\n	C<\/td>\n	B<\/td>\n	B<\/td>\n	C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n C\u00e2u 7:<\/b>\u00a0B<\/p>\n <\/p>\n C\u00e2u 8:<\/b><\/p>\n Sau khi qua t\u1ea5m ng\u0103n N, \u0111\u1ed9ng n\u0103ng c\u1ee7a h\u1ea1t gi\u1ea3m, n\u00ean h\u1ea1t b\u1ecb l\u1ec7ch nhi\u1ec1u h\u01a1m.<\/p>\n V\u1eady h\u1ea1t chuy\u1ec3n \u0111\u1ed9ng t\u1eeb d\u01b0\u1edbi l\u00ean tr\u00ean.<\/p>\n V\u1eadn d\u1ee5ng quy t\u1eafc b\u00e0n tay trai, ta x\u00e1c \u0111\u1ecbnh \u0111\u00f3 l\u00e0 h\u1ea1t mang \u0111i\u1ec7n t\u00edch \u00e2m. H\u1ea1t n\u00e0y xuy\u00ean qua \u0111\u01b0\u1ee3c t\u1ea5m th\u1ee7y tinh m\u1ecfng n\u00ean l\u00e0 h\u1ea1t \u03b2–<\/sup><\/p>\n","protected":false},"excerpt":{"rendered":" C\u00e2u 1:\u00a0Ph\u00f3ng x\u1ea1 l\u00e0 A. qu\u00e1 tr\u00ecnh h\u1ea1t nh\u00e2n nguy\u00ean t\u1eed ph\u00e1t c\u00e1c tia kh\u00f4ng nhign th\u1ea5y B. qu\u00e1 tr\u00ecnh ph\u00e2n r\u00e3 t\u1ef1 ph\u00e1t c\u1ee7a m\u1ed9t h\u1ea1t nh\u00e2n kh\u00f4ng b\u1ec1n v\u1eefng C. qu\u00e1 tr\u00ecnh h\u1ea1t nh\u00e2n nguy\u00ean t\u1eed h\u1ea5p th\u1ee5 n\u0103ng l\u01b0\u1ee3ng \u0111\u1ec3 ph\u00e1t ra c\u00e1c tia \u03b1, \u03b2. D. qu\u00e1 tr\u00ecnh h\u1ea1t nh\u00e2n nguy\u00ean […]<\/p>\n","protected":false},"author":3,"featured_media":25757,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[158],"tags":[1443,1442],"yoast_head":"\n